I need advice...

Hey mamas I really need others opinion on this..I have a 7 week old baby girl, my ex(not the biological father) and I broke up when she was 3 weeks old but he has been with me through my whole pregnancy and was with me when I delivered and even afterwards until she was 3 weeks old. Me and baby girl moved out but now he came to me and ask if he can adopt her because he loves her and also he grew up without a father and doesn't want the same for her but he doesn't want to get back together...idk about in the future but from my understanding he doesn't want to be together right now. My question is if you were in the same situation would you let him adopt her?

Sn: Her biological father isn't in her life because he cares more about getting drunk and doing drugs and hasn't done anything for her