Boyfriend help?

I have with my bf for five and half years. started dating when i was 16 and iam almost 22 know will be 6 years in may we started dating. the thing is i still love him but i dont think iam in love with him anymore. i use to get excited when we hung out and know i dont care if we hang out. he has said he would like to move in wiht me and maybe get married . i jsut cant trust him anymore. i have this girl that keeps calling me saying she is haveing is baby. he wotn talk to me about it. says dont worry about it but i cant help it. he blows me off when we have plans and nevers call me. i dont know what to do. he wont talk to me bout how i feel. says he loves me and cant live with out me. but i dotn feel the same way hwo can i brack it off he wont listen to anyhing i say he says i feel that way because iam stressed i still love him a lot i always wil iam just not in love wiht. plese help what should i do? has anyone else been though this?i jsut cant be with soemone i dont trust?