I was dating a women age 36 and I’m 32 that has 3 kids

It was a date that I just engaged in and things kind of got pretty serious and we actually clicked like crazy and I even told her I’d consider meeting the kids 2 boys 13/11 that live with her and daughter 15 that lives with Ex though I told her I can’t see my self but I will give just seeing the vibe a shot. I tried and told her yeah I can’t do that and would like to meet a girl and maybe have my own kids. And we both agreed for my happiness and curiosity and what ifs long term it would not end well. Then we broke up and a week later just told her I feel bad about what happened and that’s just what’s in my heart. Now the question we said we don’t mind just casually hanging out still here and there and maybe engage in fwb till we decide to try to date new people. Is this a bad idea? Also she has an iud and I’m just kind of scared if she can remove it and set me up ? But I could not see her as that type of person and what would she even gain from that shill embarrass her whole family and kids if she get prego from me and can’t force me to be with her. But what would you guys do in my shoes? Cause I still love her but only her and already communicated that’s all it can ever be.