My boyfriend is still in love with his ex.

So tonight after bomb ass sex he wanted me to cuddle up next to him so I did. But laying there I asked him a serious question since we were both relaxed. "Why do you always say if you love me you'll do this or if you actually loved me you wouldn't do that...what female made you think that's the way love is?" He said his exs name and I said I thought so. He's like is it a bad thing and I said I don't know. You project onto me like I'm her sometimes. Do you still love her. And why I asked I don't know it was like word vomit. He said "No?" But his heart was racing 😔 he's like she was the only family I had for two years. And her family was like mine 🤷🏻‍♀️ I have a kid y'all. So I understand but at the same time I can't have another temporary thing 😭 my heart is broken. I haven't stopped crying. What the fuck do I do? Let him go back to her? Or let it play out. I feel so fucked in the head 😭😭😭