Well here it goes, probably a long post.
when I met my DH everything was close to perfect, we were very very attached and agreed to marry in eight months (I know quite quick, but no major problems were spotten then). I had to finish my studies, so I spent the first year of our marriage in another country, and visit him back in UK frequently (this had been obviously discussed previous to marriage). Everything OK, time passed and he told me one day he had met a woman in a gallery and that she had offered him £50 for a copy of a painting (he is a painter, arts degree, but he was working as waiter). I said GREAT!!! So she ordered some more, and they became friends. When I came back to UK for good, we were introduced, and she offered him to sponsor his work, so he gave up work. Then started my nightmare, I was working, weekend I was expecting to spend time alone with him, but anytime we were going anywhere, he had to bring her along, and they just talked and talked and I felt pretty excluded. Then we rented our own place, and he asked her help to buy some furniture, so she did, and she adviced about the decoration, and he did not even for one second asked me anything. He complemented her for her appearance (he never does to me), and talked to her (only) all evening, so in front of her, there we had a big row, and I clearly explain to him, I was not happy with that. He spent loads of time in her home, or driving her to places, or going out shopping. She bought loads of expensive things for him (not only for especial occasions but anytime). Once I arrived home and he was not there, so I called him and asked where are you? Answer, at home!!! well he was in her home. They used to text each other late in the night, he said they were arguing.... I started to be very jealous of this person, so I faced him and said that if he did not find in me what he needed he could gracefully just end the marriage, no he said, no any feelings for her, confronted, they both deny it, and say they are just friends. But so much closeness between them makes me feel insecure, I am afraid he is in love with her, or she is in love with him, and then i started to go wrong myself, I checked his mobile texts and calls (he calls her 2-4 times every day!!!!), and we argued and argued and argued, and the relationship has suffered so much, it is bitter, full of resentment, and broken.
I have very mixed feelings, I felt left aside so many times and it hurt, but for other side I always think they would not cheat on me so openly, would they?