I don’t know how to help my BF

My boyfriend and I have been together nearly 2 years, and it’s been the best time of my life with him. Last night I found out he’s been using Tinder regularly throughout our time together. It’s been worse recently now that we’re doing LDR. I was obviously shocked. I read through the messages, which were mostly the girls initiating and him not replying, but there were a few in which he started the conversation (nothing racy tho). I had a good stern talking to him about it. When I asked him why he’s still using it he said he initially used to it wean himself from looking at porn so much (his choice - I don’t have an issue with it), but then he got addicted to tinder. He said he’s been feeling super isolated since he moved to the country and somehow tinder makes him feel more connected? 🤷🏻‍♀️

he’s been cheated on before by his ex, so this behaviour was extra shocking to me, but I’m still confident he wouldn’t physically cheat on me (maybe I’m a fool but that’s my impression rn). How do I help my boyfriend get off tinder without going back to porn?