So annoyed with my boyfriend right now....his brother just moved home from Colorado and is staying…

So annoyed with my boyfriend right now....his brother just moved home from Colorado and is staying with him...and working with him and is basically a part of our relationship now...the kid is awesome and he's nice but he's always around! He spends more time with my bf than I do and I'm 8 months pregnant. My boyfriend acts like he needs to take care of his brother but he's not a baby! He's 23 and can fend for himself sometimes! This better stop soon or I'm gonna go nuts