I am so gutted. I went out with my ex for 3 years lived with him for the last year. We were so happy everyday he told me he loved me. Then he went away for 3 weeks in America last July as an instructor on an activity adventure for young people he went with my blessing. Whilst there he met someone else. When he came home I found out that he was texting her all the time. I walked out and he moved straight into her. Six months later they got engaged in Valentine's day. I just don't know what to do with myself the pain is awful