There is no such thing as Karma in life
I'm 22(F) now , when I was 14-F yr old I was in a relationship with a 21-M yr old guy who was in college. The relationship continued for 5 years. He was preparing for IIM while doing his job, just before getting into one of the top three IIM after three attempts, he left me , technically made me leave him by constantly insulting me, breaking my confidence and talking about losing his chance with better girls in life because of me. I broke up because of the disrespect. Two months later, he moved on to a new girl, she was the HR of his company. They got physical within a month of relationship (which I didn't in 5 years cause obviously I was a teenager) and started a live in relationship. After 6 months of their relationship he came back to me saying he misses me and all, we stayed in touch , got romantic and even was about to be back again when I got to know about his new girlfriend from him only (the audacity), sometimes I regret not telling this to his gf but maybe she deserves it cause she was also not hesitant to get in relationship within a month or two with a guy who just broke up from a 5 year relationship or may be they cheated when he was with me who knows, he started behaving weird just about the time she joined his office.
Three years later in 2026, he is earning in lakhs, living the life, with his HR gf of three years while I am here who achieved nothing in life and wasted 5 years of my prime years in relationship. tl;dr I would advice young people to not waste your time in relationship, real world is cruel so it is better to have self respect, self love and work on yourself.