Found my boyfriends Grindr account, Skype account and gay porn in history 😔

I’ll try make this short as possible..

About 2 months ago I had a gut feeling to go through my boyfriends phone. (It was the same gut feeling I had with my previous boyfriend, and i found out he was cheating on me)

I went through my boyfriends phone while he was sleeping and found gay porn in his search history, a kik account, a Grindr account and a Skype account. I tried logging into the accounts but they were all logged out, and I couldn’t figure out the password. I had never felt so anxious and sick in my life. My heart was racing and I felt like I could have thrown up. My boyfriend had never shown any signs of being gay.. I waited until he woke up the next morning and questioned him. I could tell he was shocked that I found everything.

He has seen a therapist twice since this all happened, and he says he was confused about his sexuality, but know he knows he is a straight man and he wants to be with me, but how do I trust him.

It hurts to know that for the first 8 months of our relationship he was talking to other men on Grindr, watching gay porn, and sexually video chatting to other gay men also.

Is this cheating? I feel so hurt and betrayed. I can’t talk to my family or friends about this because I know they will tell me to leave.

He is my bestfriend and he treats me so good in all other parts of life. I just need honest advice. What do I do?