/feels/ - Advice & Venting

my boyfriend’s porn addiction is making me lose my mind. I first found out about it in early August but I keep finding out things he’s lying about. At first he framed it as just watching a random video then closing. Then, I found out he used to pay for OF while we were together. after this, I found out that he was doing this shit the entire time before I found out and he had a twitter account for OF egirls + bought an anime porn game. He first blamed his problem on our relationship issues before I found out he was doing it the whole time.
He said that what I sent him wasn’t “enough to look at” compared to porn despite him literally being overweight with a receding hairline (quickly apologized but still).

After I found out about the OF stuff, I started cheating on him online. I was a very popular cosplayer and used to make lots of money off of my looks, so it feels weird and makes me feel resentful because I feel like he doesn’t admire my looks like this. Flirting with girls/guys online feels like an escape from feeling like I’m ugly + feels like a gotcha. It makes me want to show off my body and for a while I even thought of doing gravure work when I move back to Japan. I feel horrible for doing this. I used to hate male attention, but I feel relief when a cute moid hits on me. it’s like a “atleast someone appreciates my looks”.

He’s been a great partner and has been treating me amazingly since but I still feel this way sometimes and I feel like a horrible person. What should I do? Am I a bad person?