Guys, Why is Boyfriend uninterested in sex after baby?

Is there something that happen to a mans brain after their girlfriends/wives have a child? He seems uninterested in sex and i don't think he's cheating... but maybe he is. I haven't had sex in over 12 months and my boyfriend is too busy for me. He also doesn't seem to understand why I'm sexual frustrated. I told him i was h*rny and he just asked why in a joking way, then that's as far as it went. We are home constantly but no interest.

Then i tell him I'm annoyed we aren't spending one together at all... he invites his females and male coworker over and just ignores me.. he doesn't seem to care that don't do anything together anymore and now with baby we can't. He Got an attitude with me because I'm upset about how boring the relationship is getting. Whats the point in being together?

Guys, Why is Boyfriend uninterested in sex after baby?
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