Where do we go from here?

Long story short: I had been texting my ex boyfriend in the Army for a little over 3 months; since Christmas really when he wished me happy holidays. It was NOTHING serious or flirtatious in nature but when my boyfriend found out, of course he was upset.

Despite the fact that I personally didn’t find our conversations to be inappropriate in nature, I was hiding them from my boyfriend for a considerable amount of time and admitted my wrong doings and acknowledged the fact that he had every right to be mad.

In retaliation to this, he decided to meet up with this girl he used to be pretty close with and briefly had a thing with last year. It bothered me a lot despite the fact that he also claims nothing happened.

Am I wrong for being upset? Despite the fact that he promises nothing happened and claimed he only met up with her to get back at me, should I be worried? Do I have the right to be mad? Did he have the right to do that? How do we move on from here?