Why can’t I let you go?

I want to let go of you so bad but I just can’t I wish I could but I can’t I know we almost had a child together I feel like that’s the only reason I’m hanging on and you are too bc I dont think we are right for each other anymore you are with someone yet you still come back saying you think about me on a DAILY but how if you are with her and NOT me how do you MISS me yet you are with her and NOT me and you know for a fact that whenever you leave and come back I get HURRT ALL OVER AGAIN ‼️ but yet you still do it and I still let you 😭 which is stupid of me but I still love and care about you and I think I always will bc you were the father to my unborn child