I Need Advice

minni❤

So me and my boyfriend have been together for about 7 months. In the beginning of the relationship he cheated on me with a girl from work. I found out like 3 maybe 4 months later and he promised to leave it alone blah blah ... fast forward Yesterday she texted him while I had his phone and of course I looked at the rest of the messages and of course they've been talking nothing sexual or flirting. when I confronted him about it he doesn't see what he did wrong because he wasn't flirting with her but it's not about what they was or wasn't talking about its the principal that he's still talking to her and I asked him to tell her don't text his phone no more while I'm standing in front of me and he made a big fuss like it was a problem with cutting her off. and in my head I'm thinking if yu can't cut her off you're not done dealing with her 😡