What's your opinion on this please?

I wanna get back in touch with my ex. We didn't leave on good terms and we went to college together. He went to my work for a bit before I left snd he said sorry but I can't remember if I said sorry or not.

I used him and I feel bad. I have always felt guilty about this and I have no idea why. I have a boyfriend but we haven't been on great recently and I am worried about why I wanna reach out to my ex. What's your opinion on this please?
What's your opinion on this please?
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