like you said, if it's not toxic i think it's actually pretty easy to happen.

i say that because if it's NOT toxic, then y'all probably broke up because of some poor decision making or insecurities. then, as time moves a little, you learn more about yourself and about people, and those same dumb thing and insecurities aren't an issue anymore. so, if y'all still actually like each other as people but don't have the same issues and hang ups...shit might work.