umm well she lived in america and went to university how come she never met any nice guys or good friends ?!? and yeah she probably dumped him because she realized that he was no good for her
half of his face is hidden under the hat and his long hair its kinda hard to imagine his face but still I don't think she liked him even if his age was close to hers
no way Akai looks like if he is 25-30 Gin looks like he's 35-50 I don't know in the beginning of the series he looked 30 but when they stated drawing him with white hair he looked pretty old