I need a rant. Sorry 😄

My "partner" (not for much longer) always spends time playing on his phone rather than playing with our 1 year old. And tonight hes out on the piss and will be hungover for Easter Monday. Does this all the time and wonders why I get annoyed with him. Hes going out with his mate that does coke and got him into it before he got with me. I'll be honest, I don't trust him. He's flirted with women (many) in the past and still does. I'm beginning to dislike him...very much. My son always asks for Dadda because hes hardly ever about.