I need someone to talk with ?

I know that this is not the way i can get healed but i don't find anyone to speak to... I am in deep pain

I loved a girl from the depth of my heart , then suddenly she started to ghost me and sometimes spoke to me again , she told me that she had a problem that affected her mental health and that she can't feel good that is why she left me... I decided to be beside here because i suffered from my dad and mom's death before and know the pain of mental illness...
I travelled to her with my family. I missed her so much and wanted to see her then when we came back home i opened my brother's phone and found her cheating on me with him.. they kissed each other when i was there with her !!!

I don't know what to do , i hate myself , hate my life... I really wish i will be dead soon... I lost everything , she was the most loved person i have ever met , i was so happy that i will have a new life after misery
I need someone to talk with ?
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