Dating

I met Doris djoleka in OCAD. We became fast friends bonding over Japanese manga and Korean culture she loved. However at the third year or fourth year of study she met a Korean guy on holiday visa. I didn’t like him finding him weird and racist. But I agreed to go to a concert with them. During the concert she fell ill. I checked the uber for her for hospital and then went home while the Korean guy attached himself to my going back home. I caught him checking my legs out on TTC. I immediately told Doris when I got home. She immediately defended him. We had one last talk about him on the phone. Then she stopped replies and later I found out they got married. They even moved to an apartment near where I was living. I was upset. But I hid my displeasure well deciding not speak ill of her and her choice to other people. Is dating this primitive now? Etc.