Is he cheating? Need Advice!

So my boyfriend that i've been with for almost 3 yrs hasn't been coming home for 2 nights at a time. He ignore my calls and texts when i check his call log and dial the numbers back (with a app that has his number) its his homeboys.. The past two days we been fine, today i look in his sock draw to put a pair on and i felt something in one i check and its a Condom 😐 he doesn't know i know.. what should i do? I really love him and so do my children...