Boyfriend on POF

My bf and I celebrated 2 years together today. And I just found out he is on POF.. I am shocked. And I can't stop shaking. Idk how to confront him..what am I gonna do??

Update: I confronted him in person and he still swore up and down that he didn't make that account. It hasn't been used since Tuesday at 9am. He didn't have the app on his phone and he was 100% fine with me deleting that profile. He is also back to letting me go through his phone no questions asked. He told me he does want this relationship to last and there isn't anyone else. We had a long talk. He told me he wants me to trust him again. He told me he is still in love with me and still wants the same things as me. Thank for the advice everyone gave me.