The only words of advice I can offer you are “time is a great healer”. It’s cliched I know, and nobody ever knows how much time is enough time, but it’s true…
Breaking up from someone you love sucks, especially so when they’ve fallen out of love with you, I’ve been there and done it myself. Try to keep busy, do things with your mates, ride your bike lots and perhaps rekindle any old hobbies or interests. Can only say from experience though, that getting straight out there on the pull (at mates advice I might add), and doing the inevitable, only made me feel a lot worse initially too!
Good luck…