These thoughts keep persisting in me... I don't know what to do?

1.) No, it is not realistic, nor is it normal to have no arguments of disagreements. Nobody will agree 100% of the time and arguing means that your at least communicating you don't see eye to eye and this can help you to come to a compromise. Sitting on your feelings will lead to resentments and a big blowout and many couples who experiences this have a divorce as they feel that arguing isn't normal and now that they had one the marriage is not salvageable.

2.) It is very normal for all healthy relationships to have rough spots. You deal with it by sticking it out and communicating. Sometimes it helps to do something to distract your partner. Getting out or seeing friends and family helps. If you can ride out the storms then the relationship will last. He is frustrated as you have said, and this is normal. Remind him he is young and support him in his search for a new job. He still loves you, so no, it is invalid to feel unloved. He is just having a hard time and it has nothing to do with you.

3.) If this is his first relationship then it will be rough for you two as he has little experience. It is the job of both you and he to work things out. Eventually he will learn how to handle situations, but you have to help him with how to handle the situations that pertain to you. You will both learn as time goes on. Yes, he may be a bit more immature than most 23 year old men if he was spoiled as a child. If he has had everything handed to him then he is still learning to stand on his own tow feet. There is nothing you can do to speed up his maturing process, nor is it your responsibility to do it. This is something he is going to have to cope with on his own. it will take some time.

4.) Yes, it it very normal for couples to complain about one anthers relatives. No relationship is harmonious at all times, whether it is with in-laws, your spouse, friends, siblings, your co-workers. Nobody is going to get along 100% of the time. Pointing out the faults of other is what people do. It would not mean that he loves you less.

5.) Honesty is very important and being upfront and communication is good. It was not wrong of you to be upfront with him. If he says he isn't upset with you and it has nothing to do with you then you need to trust him.

The most important things in a relationship are communication, love, trust, and compromise. You are experiencing a completely normal relationship so rest assured that your not the only one. The sooner you realize these things the better off you will be and the quicker you'll learn how to forget about the small stuff and it is all small stuff.

Not getting married is a great idea. Love and sex are not synonymous, love is an unconditional need and devotion to a significant other. Sex is a physical act, animals have sex do they know or realize they are in love? If someone allows life and its ups and downs to create issues in their relationship, then the Love is not unconditional, it comes with conditions. I'll love you so long as things go my way, as long as everything is in its proper prospective for me, so long as things are content with me and you aren't rocking the boat, etc. Do you want a conditional relationship? He is feeling it may be easier going without dragging you along for the ride, but he is caught between giving up the sex or the ball and chain. He isn't going to come right out and say something that is going to chase you away, until he is sure that is what he wants to do. In laws have nothing to do with a relationship, and since you two aren't married, he doesn't have any in laws yet, but he already doesn't like the thought of it. It shouldn't even matter, in your vows it states that you will be one, forsaking all others, in laws are all others too. All that should be your concern is you, your husband and your children, when your married that is your family, no others and without exception. If you both waited to have sex until you were married, would that have been your first relationship? So does it matter how many times you had sex with someone else to make you a loving devoted spouse? If you were married would things still be the same? If they would, then you are wasting your time in this relationship and things seem to be getting worse instead of better. Once you both are having second thoughts about one another what is there left to love or enjoy in your relationship? Sex? Get yourself a man, and stop trying to work things out with the boy your with now. Do you want "Oh, poor me", to be the father of your children? Who are you trying to kid, me, or yourself? If you didn't already see the writing on the wall you wouldn't be asking this question, would you? .

It will never go smooth 100% of the time unless one of you is a yes man, or one that does everything the other tells them to do. Help him with his job hunt by talking to him about what he likes or dislikes in a job.Relatives, sometimes they will get on your nerves, he, will get on your nerves, you will get on his.Immaturity all depends on the person, no matter what age. Keep communicating, you have to. Never be afraid to be honest or to tell him how you feel, when you keep stuff back, it can start to eat you up and get worse every time you think of it. If either of you can't or won't listen and work on things, there won't be a relationship.And moods, sometimes he will have them and sometimes you will have them, each has to be understanding and help the best you can. I'm glad your discussing marriage and not jumping into it. Yall are young take your time.

No, no relationship runs 100% smoothly all of the time. You two have to work at it constantly and it is a roller-coaster ride. I think guys at 23 are very immature compared to women who are the same age. He is still young and has plenty of time to figure out what he wants to do in life. When you are young you have unrealistic expectations and feel you have to be at a certain point in your life at age X. Just tell him it's okay, you're here to support him, and most importantly, tell him to just enjoy being young! He has plenty of time to climb ladders!