breh u dnt need to ask us, deep down know what u have to do....trust your instincts. U said u have evidence, and he has done shady shyt before (hotel room charges) expose him. I know u love yo parents and dnt want them to split but u gotta think of yo momma and her well being. What if she finds out in sum terrible way and also finds out u knew the whole time, she would be devastated more than she would be if you tld her yourself (imagine how u would feel if sum one was poisoning u for a long time and u found out that sumone u care about and love knew the whole time but didn't tell u or try to help). Your mother sounds like a sweet strong lady, just be there as her support and source for love after the whole thing goes down......u can do it breh.
