<human>: I'm a 20 year old guy and my girlfriend is 24 and we've been together since may and I really feel that she's the one, but she has recently told me that she feels we can't be together because I'm younger than her, she's has had a very hard life and has dealt with self-esteem issues, she usually only dated older men (28-40) and has had a crush with her 32 year old married boss since last month, but never evolved past that. Our relationship when my gf of 3 years left me heartbroken (who was her best friend at the time) we started hanging out having similar personalities and evolved into dating, she has been showing signs of discomfort around and told me about her boss crush. I accepted it but she told me I was the person she wanted to spend her life with but can't because I have too much anger and too immature for her to have romantic feelings for me, I just don't know what to do. She i wait and see if she really loves me or will I be doomed to be her friend?

Can you condense the text into three sentences or less?
<bot>: my girlfriend thinks I'm too young for our relationship to last, don't know if I can salvage this or just move on.