Cant stand his immatureness

I recently found out he was cheating and had sex with an older lady in her 40s . I cut it off , and he acts so fckn imature when it comes to our sons things since he is the one that baught them, since im pregnant with our second . He doesn’t want me to take his clothes and his toys with me since i moved out to my moms , as well for the crib . I mean its not like he’s goin to play with them or sleep in the crib or wear his clothes . He is so pathetic ! I would have baughtt him things as well but im a full time student and have no job and was depending on him mean time . Smh