I feel like I am dying.. why would he did that?

He cheated on me with another girl after 6 years between us and we were engaged

He was in another country for work

Then he came and confessed to me his betrayal and begged me to stay with him. He said a lot of things about that girl

He told me that she was bad and not suitable for him and did not look like him

And I trust him because he wants to fix the relationship between us

Then he traveled to that country and I decided to give him a new chance

After a whole year had passed

A fake account sent me a group of pictures of him with that girl. He never left her and he goes with her on vacations to several countries. They look happy together.

I confronted him about it and sent him pictures

He told me that he knows that she is not suitable for him and does not resemble him, but he loves her

Something made him not leave me at all, so he stayed with me as well

I feel like I am dying.. why would he did that?
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