Me and my girlfriend have been going out for just over a year now. In September time last year she had told me that her ex girlfriend wanted to get back with her and started fancying her again. I don’t know if she said anything to her but she is still with me so obviously she must have said something like I have a girlfriend. I got annoyed now and immediately didn’t like her ex girlfriend, and also I met the ex girlfriend before and she was really nice to me then she’s trying to interrupt. Now I was kind of anxious that my girlfriend would be meeting up with her ex on the side and before In previous relationships she wasn’t loyal but there were not as serious as our relationship. I told her how I felt about her ex girlfriend and she kept saying nothing is going on and I’m not meeting up with her and I told her that I don’t want her to meet her incase she tries to do something with my girlfriend. The ex girlfriend kept saying she wanted to go round her house and I didn’t have to know. Then I started to get over it around February time, then in April I saw a text on her phone from the ex and I was curious as to what they could be talking about and my girlfriend was asking to meet her and begging basically saying “please, please” and I was thinking what the heck, because I told her I don’t trust the ex and she still kept asking and then she told me she did meet her to go shopping and it made me lose trust because I told her not to do something which she said was fine and she went and did it anyway. Now I don’t know if I’ll ever be able to trust my girlfriend again and if I’ll ever feel happy like we were before. I don’t know if I should break up with her to save myself from getting hurt or to stay with her because she hasn’t actually done anything that bad as far as I know. I’m just confused and don’t know what to do.