I dont get it, Im confused lol hella long but IF you do read, give feed back plz lol?

My dude sux lol (besides the fact my "grammer" sux and yes i can spell just choose not too so no answer along the lines of my spelling plz lol) why does my dude cheat? well I think he did Im here to ask yalls opinion....So we been together almost 3 years, we had a healthy relationship GREAT then I got prego and moved with a family member, our life stopped and seeing him EVERYday went to seeing him 1-3 times a week. He started "traing" for MMA at his cousins gym and would call me after gym and say he was going to his cousins and be there till like 1-3am and barly stay in touch. THEN on xmas day I get a text from some woman saying stop tellin my man you love him and all of that, come to find out it was his GF of 7 years, he says it was his EX and shes crazy watever, well she called me monthly for 4 months which I dont get but I stuck by him, then I see on myspace and FB him and a 17-18 yr old chic (who is involved with his cousins gym) callin each other babe, baby, my girl, y and stuff like that (mind you it took his daughter to b 8months old for him to tell anybody he was having a kid and almost 3 years for me to meet anybody in his family) ....lol stupidly I stuck by him...then he tells me he went to the casino alone with his friend emily AND a concert....so I went to a party withOUT him, fell 2 stories ended up in ICU for 2 weeks woke up and he was there, ever since things have been OK we still have no life, barley wake up together but hang everyday. Should I worry a little that we havent EVER taken a pic together, not even with our daughter, we only peck kiss, i dress up EVERYday for him and he never compliments me or anything and Iv told him if hes not into me then we should break it off, he sticks to the fact he is but I dont understand y we have once a month IF THAT. I know hes talkin to females on FB but wen i ask him to show me his FB he wont and I dont feel comfy askin him to b freidns(invasion of privacy) so again, should I be worried? Mind you I have our daughter 24/7 he takes her MAYBE once a week but hasnt had her for a night in awhile. I have no friends, no help here and the only thing keeping me from moving is my daughter so im confused, mixed feelings and dont kno wat to do. I wanna stick by him and be that strong woman, best GF crap but i get irritated SOOOO much and I cry SOOO much because of him but its out of pitty for his family, because if I leave back to Cali, his family wont see their granddaughter and he flat out says he didnt want her and if I go hes glad he didnt get attached and all that, but he tells me all the time I was selfish because I kept my entire tax refund and i "owed him" part of that because shes his but I worked 60+ hours a week, drove her to and from babysitting (60 miles 5 days a week) and paid babysitting all year. ehhh sooo much crap, maybe i just needed to vent but if anybody actually reads this rediculously long message def give me your feed back, yes ive told him how i feel, i did when i was prego, asked him what I can change, what he likes, I feel like ive tried everything other then leave but im scared. Scared to be alone, scared my daughter will hate me, scared his family will hate me if i leave....im just sooo confused!!!! lol thx for reading tho and thx if you give feedback!! (even negative feed bak hehe)