I have a boyfriend for more than 3 years, We were so happy till the last couple of months, but the lots of fights are started. So lately, I caught him texting a girl behind me. I asked him if he is in love with her, but he said no and I believe him. And now he says he is very sorry and wants to forget about all these things. So I dont know if I should just forget all this because I am not sure if he'll never do this again so please advice.