Ages. I love hard(er than I thought). It's human nature to think back on them still. But had to keep reminding myself that we simply weren't compatible (we were awesome friends, but it shouldn't have become romantic). Neither of us were wholly innocent, and neither are bad people. Lots of teenaged behaviour for what are meant to be two grown-ass adults!. Surprised it even was a thing. But I do regret ever making it a thing, not gonna lie. Rather I never met them, but live and learn, as they say.
It was a secret kind of flame for reasons (no affair, nothing like that, just a quiet thing really), so I couldn't really tell anyone - only a couple friends/one family member knew, so by the time I exploded and confided in them, it was like a torrent of info to them. Am certain I lost one or two other friends over it/her, which is a shame. It was my first "real" emotional thing with anyone - I even thought of marrying her, so I was quite depressed for at least one year, and depending on the mood/air and where I am, I will sometimes have this sinking feeling every now and again before I snap myself out of ancient history! It'll be a quick flash of a memory with her at a place I just passed that we went to. This is normal, best to snap out of it.
The immediate period of the official breakup had me lose appetite, felt sick in the stomach often (I visibly lost weight), didn't want to socialise with most of my friends (especially those who I knew had a close tie with her), anxiety; the usual works, really. Of course, I cried a couple times on my own, since as I said, it was a secret flame/one I didn't really share with most people. It hurt. It really, really hurt. People don't lie when they described their emotions, now I knew haha. I
I think it is true, time does heal, but everyone's duration will differ. Seeing her on dating apps makes you wonder, naturally, but we are both on separate paths now. I still have some minor internal anxiety of ever bumping into them randomly and/or a mutual friend being mean enough to make us sit in a room together despite me firmly saying I don't want any contact anymore.
It was for the best we never kept in touch. I wish her well honestly. However, I don't want past flames in my present that would be a potential flag for anyone new I date. I wouldn't be too fond of my new flame's exes hovering around either, personally. That said, I'm not dating right now, but am back on the market.
OP, just take your time but at the same time, you will need to pick yourself back up. If you have people to chat to, go for it. I was lucky I even had one/two people to chat to, which helped, but I still had to deal with a lot of it on my own because I was just so private and didn't share major details with them. Allow yourself this period to mourn and get stuck into some interesting hobbies. Before you know it, you'll be re-energised. It can happen a bit randomly. But don't allow yourself to keep falling into despair, a lot of it is gonna be how you help yourself too. Try and have wholesome fun where you can, that helped me (play with nieces or nephews, if you have them).