Boyfriend caught on tinder for the 2nd time?

Anonymous
I have been dating my boyfriend for a year now, we're long distance and we try to see each other whenever we can.
When he visited me in March I found the tinder app on his phone, and he was openly flirting and trying to meet up with girls. I'm pretty sure he was meeting girls but he denied it. We took a break and we eventually got back together 2 weeks later. He deleted the app in front of my eyes and he promised that he won't talk to girls anymore. My best friend lives in the same town as him and earlier today she said that she saw him on tinder... so he deleted it in front of me and he downloaded it again after he went back home.
I don't know what to do at this point, I love him but I have lost complete trust in him. I thought we were in a very serious relationship and I'm very very very very hurt and disappointed in him.
I realized that he is a liar, and probably a cheater. I haven't confronted him yet about it. I'm waiting for your advice guys...
My mind wants to break up but my heart loves him. What to do?
Boyfriend caught on tinder for the 2nd time?
17 Opinion