<human>: Condense the text into a few key points

Me (22M) and my girlfriend (26F) went through a long drawn out breakup lasting about 6 months after being together for about 1.5 years. We broke up because of the age difference between us and her wanting a long term commitment from me.

 I was worried if i settled with her in my early 20s i would later regret it, that i didnt want to be thinking about marriage and kids yet. The relationship was otherwise amazing, first love and we matched quite well.

 The breakup was amiable and we said we would still stay in touch from time to time. She was my first serious realationship and first love.

 She now has a new boyfriend who is the same age as her, and i cant stop thinking about it, totally heartbroken. When we initially said we would breakup i wasnt anywhere near as sad as am now, i cant stop thinking about her since i found out about this new guy last week and it makes me feel sick.

She is gorgeous and has the brightest personality ive ever met, im terrified ill never meet anyone like her again and wont ever get over her. It makes me think that maybe being only with her and having kids in the near future wouldnt be such a bad thing and maybe she was the right girl for me, but i cant tell if thats just the grief playing with my head.

Did i make a mistake breaking up with her? Is the age difference not as big a deal as i thought it was?

Any advice is greatly appreciated.
<bot>: broke up with gf older than me by 4-5 years, now she has new bf and cant stop thinking about her, does the age gap really matter