The other night I was sat on the couch with DP and his mum called him. They spoke about a few things and then she said that his ex girlfriends dad was having a birthday party at the weekend and it would be good if he could go.
After he hung up I said it's weird that his mum would ask him to go to his ex girlfriends dad's party when he is nothing to do with that family anymore. His mum has remained friends with his ex, which is fine, that's her business and she can be friends with who she wants. But still trying to get my DP to go to his ex's family events is strange to me and I told him I wouldn't be comfortable with him going. He doesn't know her dad anymore, they don't speak. There's no need for him to go. Anyway DP agreed.
On Saturday I was very ill and spent the whole day on the couch with a blanket watching movies. DP went out to help his friend move into his flat and when he came home he said "I just went for a drink with Pete and completely forgot it was Michelle's dad's birthday party in there! I didn't want to walk straight back out but I felt guilty for being there when you didn't know so I left after one drink" I just said ok and left it at that.
Now, I have never ever snooped on his phone, I've had no reason to. Even if I did have reason to, I still think it's wrong so I feel quite guilty and in the wrong for this next part. His iPad pings with new texts all the time while he is at work but I just ignore it usually. But today I happened to have his iPad out and was using it (we share it because I don't have one and he says I can use his any time) when a text came through from his ex girlfriend. So I opened the text. I know I shouldn't have done, I already know I am in the wrong for that. But I just couldn't help myself. I saw the preview of the message which said "why did you leave so early yesterday?" And I couldn't help opening it. The few text messages above that were my DP asking what time her dad's party was on that day and saying he will be there.
I feel hurt that he lied. If he really really wanted to go to the party for some reason then he could've just explained to me. But it's the fact that he knew I didn't want him to go, went anyway, and then came home and pretended that he forgot about it, when all along he hadn't forgotten, he texted his ex a few hours before asking her for the time.
Now it's not the worlds greatest betrayal. I have also betrayed him in a way for reading the text and I feel ashamed at myself for it. But also I do feel like why was the party so much more important than my feelings? Why did he feel like he simply couldn't miss it and it was worth going behind my back to go? I have spoken to my sister about this and she thinks I should bring it up to him tonight, but I feel guilty that I read the message. Is him going to that party such a big deal? Would anyone else be hurt by this?