<human>: Well basically one day a month or so ago she asked if I still watched porn, me trying to stop I said no (I've watched it for years now), and I promised her I wouldn't anymore. Then one day I had an urge to watch it so I did (I felt terrible about it). So fast forward to the other day, she asked me about it and I couldn't lie to her face. It made her feel terrible that I was whacking it to other girls (she's very insecure so I can understand why). Basically she says she can't trust me anymore even though this was a big wake up call for me. I had not known it upset her this bad. I don't plan to watch it anymore but she won't believe me. How can I help regain her trust again? We've been dating for almost four months now.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I watched porn when I promised I wouldn't anymore. Girlfriend doesn't trust me anymore, I want trust back.