Search Results: wrong to be protective

I been with my boyfriend for 9 months now & We are very inseparable or at least it seems that way. From the beginning of our relationship he was obsessed with everything about me.. almost right away. Through out the first three months, things really started to get tough.. We argued a lot. he was over-protective & always demanding loyalty. Soon after I figured out he cheated on me & it was devastating ! More on the fact that, he talked about my loyalty to him almost everyday. He begged me to stay with him & asked for my forgiveness & to try to work it out & promised it would never happen again.. We moved on... but everything was still really complicated after.. arguing a lot still but , it seemed like there was bits of positive changes here & there that lead me to believe he would never cheat on me again... Soon to realize Three months later.. here I am. & He Cheated on me AGAIN... I can't leave. but I can't take him back as my bf. Not only did he cheat on me.. but he made the girl he was cheating on me his girlfriend too.. She said she never knew & He lied saying we weren't together... I am in complete turmoil... my heart is dead shattered.. I broke up with him & so did she. But she is still trying to work it out with him.. Unfourtunatley for her, he doesn't want anything to work out for them anymore & wants to juss continue on with me. He's spent the past two days trying to get us back... but it seems like his presence makes me happy & sad at the same time.. Where did I go wrong? what did I do to deserve this? 9 months may not seem that long, but Its like we can't part.. which makes me so much more confused as to why he cheated on me again ! The first time. He told me why & how he felt like I was neglecting him & not caring as much as he wanted me too.. we got past it & I show i care a lot ! But, now what? I asked him this time & he said. nothing your perfect. i took him back as my bf after a day last time. this time i refuse to. but i don't wanna loose him! help!