I lose my confidence after 4 months into a relationship. What do I do?

I feel as though past relationships have changed me, too. I felt like I had lost myself - by putting too much into them and trying to sort-of sculpt myself to do things that they liked and how they liked to me to be. It was never them asking, I just did it because I liked making them happy. Although - this drains the crap out of your personality and after a while you feel lost, like you lose the person you were when you first got together.

I'd say you were jealous. You've been together for a while, she brings him up quite a lot - I don't see why you wouldn't take notice to this. It's completely normal, I'd be the same! You probably start to feel yourself getting into these girls a lot more after spending this time with them, which is nice?! But i can totally get what you mean about confidence. You see, all you have to do is to remind yourself of what you did when you first got together and try and be like that again. Just be you. Easier said than done - I know! But you'll get back to your normal self. Don't freak out about caring, it's good. Unless you aren't serious about these girls and feel yourself getting attached and that freaks you out - than it may be trust issues in case you get hurt or maybe relationships just aren't for you.

you are getting too involve in your relatioships you do like your realtionship is too long like 13 years or so :p so you have trust issues jealousy issues... look take things easy don't be too emotionnal in a relatonship it's just a relation.think wise and act wise and trust in yourself and everything u coz at the end it all goes to good so take every detail easily and don't be too emotionnal

Sounds pretty normal to me. As you grow more attached to your girl, you start worrying more about losing her.

Sounds like you have commitment and jealousy issues.