Had a break up just because of my caste

Last year my Brahmin gf broke up with me after finding out about my Caste. I told her that I am SC but didn't tell my Caste(Name) and also tell her that we don't have any future, she knew that and still continues the relationship after 1 year she some how found out my Caste Name and broke up with me immediately My Heart broke into so many pieces. Literally after 2weeks she got a new Bf who is from upper caste I feel so betrayed can't express in words. I still have respect for her because she genuinely loves me at that time cares for me. She was my Dream girl Bro like seriously within 2 weeks she have a new gf what she did I never thought this would happen to me. I haven’t moved on yet it’s been 1 year Almost same thing happened to my family when I was in primary we shifted to housing board quarters and there were many neighbouring family, they used to treat us nicely because they think we were from Upper caste. And some of my friends says me and brother looks like Rajputs we both are good looking. The day our neighbours found out we were SCs they immediately changed.