My bf was a hoe

Me and my bf have been together for a while now over the course of this time i have found out about his past. First i found out him and my cousin use to mess around then i found out he use to mess around with a friend tand just recently a cousin cones around saying you got my leftovers i already his dick all this disrespectful stuff he is completly faithful now but should i feel some way about this or should i let the past be