I want to share that when i was the OP's age, i had a relationship with someone 19 years older than myself. They didn't have a high tolerance for bullshit. I learned a lot from that relationship, which ended when I WENT BACK TO SCHOOL at age 21!!!!! BUT it was because the OTHER person broke up with ME to be with someone closer to their age!!! I wanted to pull a crazy on that person, but i knew that if they already broke up with me, pulling a crazy would not make them reconsider.
It is now 20 years later and we are still good friends. I am apparently the ONLY ex of this person that they are still in touch with, including the person they dumped me for.
This is why i know what i'm talking about here.