I need advice!

BR

Alright soo this is a hard one for me and i thought a lot before putting it.

Babe and I have been together since 2009 and we got married last year( we are both 21)

He is a great husband he listens to me, he puts me before everyone and everything, he makes me laugh, and has been there for me in rough patches of my life. But! he has this horrible detail, i once checked his phone and he was on Pof the dating app asking for bjs also he was on Craigslist asking girls how much for a bj every girl that he asks always doesnt respond after he says only a bj one even got mad at him and everything, i have all the screenshots and conversations the thing is that he is always with me we only have one car so i drop him off at work and his parents live with us also. i have no clue if he has actually payed to get a bj or anything else and idk what yo think i mean why does he do this? ive asked about our sexual life and he says he loves it idk what to think or what to dooo.