My bf of 6 yrs left me or another girl...your point of view?

Okay, so...I was with my bf of 6 yrs since I was a Jr. in high school. He was my first everything. He of course, had been around and experienced different relationships. Our age difference is 4 years. Right now I'm 23 and he is 27...going on 28 in July. I'm sure it was me being dumb and naive, but during the remaining years of high school, he often went out with friends...sometimes, I wouldn't hear from him for days. Until one day, I just broke up with him. Senior year, I met a wonderful guy...he was great and we got along well. When, my bf found out...he was doing everything in his power to get me back. I have to admit, it was fun...seeing two guys with no strings attached. Finally, my bf told me I had to let the other guy go to try and work things out. I did. During that time, things happened. I "experienced" things for the "1st time"...I knew he was it. I loved him. About 5 months later, my bf was arrested and sent to jail for 1 year and 6 months. I promised him I'd wait and I did, but not alone. That great guy I had met my Senior year, somehow came back into my life and I "experienced" with him too. Finally, 1 year and 6 months later...my bf came back and I couldn't be happier, but for the first time ever...something started haunting me. Jealousy, insecurities, and other random crazy feelings started taking over me. Any girl he even said "Hi" to...I automatically thought he was sleeping with her. Crazy, but I couldn't help it. One time, I broke up with him because he made me so mad and I didn't talk to him for about 2 weeks. Within those 2 weeks, he met some girl and had sex with her the first week of knowing her. I talked to him later on and told him how I felt for him and he said he felt the same way too. We got back together. I however, every couple of months, I would still see that "great guy". Idk, I guess I liked the feeling of doing something I wasn't supposed to do, but at the same time, my heart was devoted to my bf. Months went by and so did the years, break-ups, fights, women (in his part...during our break-ups) and for me, it was always that "great guy". Finally, we moved in together, but not because I wanted to, but I had some problems back home. I never thought I'd be asked to leave for something that had nothing to do with me. But I was. My bf basically begged me to move in with him, so I could learn how to trust him. And I did. Things were good. A little jealousy here and there in my part, but nothing really major. After a year of living with him (and his family)--my best friend in the whole world asked me for a favor. A huge one! He was feeling very lonely--his father was no longer in our presence and well, he's also gay. A big part of me thinks he hasn't fully forgiven himself for never telling his dad about his personal life. I would never hesitate to help a friend in need, but this one was hard. He lived 400 miles from where my life was and he couldn't leave because he was going to school and working...I WASN’T. After talking it over with my bf and my Mother, I decided to go. I left my life behind for my best friend since 7th grade...with the promise from my bf that he'd wait for me.

After 2 months of being away, I went to my hometown for a visit and the one thing I dreaded, accused, and constantly became jealous of...happened. He was cheating on me. I saw it in his phone. A text from a female (who he worked with) saying she missed him and wanted to see him that night. I questioned him about it and he denied it. I cried and I begged him not to leave me. He later admitted to his mistake and said it would never happen again. Things became good again and I tried my best to control myself. 2 months down the line, we're still good and talking everyday. One Friday, I called him. No answer/no call back. Saturday, the same. Sunday...again. Then Monday...he changed his number. I, as his gf, had no way of contacting him. He just left me. I took a trip to my hometown and found he was talking to the same girl again AND another one he had met at some bar. I stayed in my hometown for 2 months. So, I saw him often...we tried being friends after everything. Eventually, we got back together. He told me I was "too far away" and he really wanted me to go back home. I promised him I'd go back in 4 months because my friend was fixing to graduate from his University. During that time, I visited him often and we started trying to have a baby. Something I really wanted at first, then he got really attached to the idea...so, we were always trying. No luck. He also knew how much I needed a car and had applied for credit at a dealership and was approved. He said I could have whatever car I wanted. Our lives were slowly but surely falling into place. One day, we were talking about how I needed to make an appointment for the Doctor so I could find out why I wasn't having luck with a baby. Then one week later...it happens again. Wed. I call, no answer. Thursday, nothing...Friday...nothing...Saturday came arou