<human>: 4-5 years ago I dated a the above girl for about 10 months (neither of us realised the age gap at first). For our ages, we both were fairly inexperienced in relationships - her especially, I was her first serious boyfriend.

Looking back, the main problem with the relationship was that I felt immensely inadequate. I am pretty smart guy and in pretty good shape (she was overweight) but otherwise she had me comfortably covered in all areas. She was more mature, seriously brilliant, spoke a bunch of languages and was in a career that paid a lot more than mine. There was also a certain amount of pressure (at least in my own mind) by being the first-time boyfriend of a girl with a ticking biological clock and a desire for kids. Particularly on the maturity front, I had no confidence in my ability to be the life partner she needed and figured she just hadn't dated enough guys to know better I am a fairly withdrawn guy and naturally (stupidly) I did not discuss any of these fears / concerns with her.

End result was I broke up with her on the grounds we were in two different places with our lives, and I didn't want to waste any more of her time. It was tough but amicable, and within six months (for unrelated reasons) she'd moved to another city. We haven't spoken since.

Fast forward to 4-5 years later and totally by accident I found out that she has moved back to my city - no idea if she is single. Should I get in touch with her?

I am not a guy who has a lot of serious relationships, or even forms strong connections with people full stop. For me, the connection I had with her was fairly special. I would love to revisit it with the benefit of being more mature, and in a better emotional space re my own self-esteem. But I know she was deeply hurt when we broke up, and I don't want to upset her just because 'young me' fucked up and I want another bite at the cherry.

Provide a brief overview of the text.
<bot>: Broke up with a girl, regret it. Not sure whether it's fair to reinsert myself into her life 4-5 years later.