Relationship problems

Taylor

I’m having doubts. We been together for almost 5 months now. He has 2 kids and he doesn’t get to see them often. He brings up his baby momma everyday ( even compares me to her ). I feel like I want to give up. I try to talk to him and tell him how I feel but he acts like he doesn’t care or changes the subject. Everything is about him lately. I feel like he is using me. He brings up having sex with his old friends and old girlfriends all the time. I told him it bothers me but he said it’s in the pasted it isn’t bug me. He brings up comments almost every day about cheating or if I go to the store he will ask if I cheated on him.

Please help