I live away from my hometown for about 3 years now, pushing 4 - and I made the unfortunate mistake of dating my best friend of 4+ years before hand. We broke up after I had some major mental health issues and needed space from them but I wanted to stay friends. Honestly, I failed to do so- they tried really hard for months. I later found out I caused them a lot of problems in their mental health state because of the breakup and how blunt I treated them /ghosting etc. 

Fast forward a couple of years and every time I visit home i feel like i should reach out for closure on our friendship. Im reminded of mementos/places we went together/mutual friends etc. Im happily in a very long term relationship right now and have 0 intention of romantic or sexual kind, just a bad case of anxiety and worry about wronging people lol. 

Would it be wise to reach out and ask for closure? If so how do i go about it? If not, how do i stop thinking about it whenever i come home?