What to do!?!?

Soooo my bf and I have been dating for 3 months now. We met on a dating site and things have worked out great so far! Here is the kicker tho.... he still has the dating app and is active on it and also has friends that are girls that he talks to constantly and snapchats with! He is honest about this to me so I figure he isn’t hiding anything but I also am confused bc with all of his exes he would post a lot of things on Facebook and stuff about them and early on in the relationship and he hasn’t with me?! He is an amazing catch but what is he hiding??? Input please and I know this is childish but want your opinions!?!?!