it’s inappropriate
Ugh i would hate to be in that situation and i am a bm
Not cool
A bit suspect…
I personally think anyone man and woman who have a kid or kids together will always have some sort of relationship, they're bonded forever through those kids and I think most would get back together, depending on circumstances. That's a tough spot to be in but, I feel like if you say anything about it you're most likely going to get some pushback from him or he'll mention it to her and then she's going to have a problem with you.
Baby? Definitely not.
I would never call my baby dads ‘baby’ that’s something you say when in a relationship
Personally I wouldn’t have it. Talk to him about it . That looks like flirting to me