So my ex (babys father) called me and txd asking can we talk and idk if I should cause when I would…

So my ex (babys father) called me and txd asking can we talk and idk if I should cause when I would give in and call him back just to listen to him because I know he always felt like his family didn't love him and he has no one to talk to which is why I stayed with him as long as I did but when I talked to him he felt like nothing changed and I was still his and hes always like whoever you talkin to must be putting it down good cause I just wanna talk and you won't answer my calls I love him I want to talk to him but he was so obsessed with me to the point he was possessive of me and our relationship was so toxic because of it idk what to do or expect if I let him back in this one time