How to cope with losing him forever

losing obsession ? Someone i loved so intense, mostly in distance, i feel like I have been obsessed with him for 10 years and couldn’t let go.. I confessed to him after years, he knew about my feelings and loyalty to him.. only to tell ‘ he never asked for it’ and I need to find someone else, because he can’t return my feelings and is getting married. I need to move on and he needs to run and block, he can’t be involved

we never dated..he never gave us a chance to be, there were always mixed signs, but I gave him my time, energy and love supporting him, fighting for his love , writing messages and being ignored, ghosted

and it feels painful and sad he doesn’t want to see me or be in a relationship with me 😨

it is like I gave him all my heart and vulnerability, offered all the love and he doesn’t want anything with me, not even being friends.

to say I am mortified as not saying anything, stings and hurts 😫 how to live after all these years and being not needed , chosen ?

thank you 🙏 it’s very painful