She is 20 years old, beautiful, smart, sweet and funny. We are 99% compatible. She says she loves me (not "in love"), that I changed her life, that because of me she is a different, better person, and that she wants me to be in her life. She spent the last 6 month texting and calling me, day and night while I was living overseas. We shared our deepest secrets.

The issues? I'm 38 and she has a boyfriend.

Now that I'm back where she lives things are starting to get really messy, I wanna see her and spend time with her, she wants to see me too but I can tell she holds back, probably because of her boyfriend, who already complained multiple times about me. She cried her eyes out for an hour when, 2 days ago I told her we can't keep doing this and that it would be probably best if she didn't call me or text me anymore.

Needless to say, I'm falling for her, since I have deep emotional issues, and not texting or calling her is driving me crazy, but the rational part of me is telling me she is never gonna leave her boyfriend for me
Am I crazy even thinking about pursuing this?