Hi @Pain
I hear your pain and I hope you dont mind me saying but I know your pain. I felt the same as you do right now. To tell you the truth sometimes when I'm alone and tired I feel that rejection all over again. I try to figure out how I could've done things differently, try to see if i should've just tolerated things better and even yet just let it be so I can be with him.
But then, I look at my toddler that he rejected when I was pregnant and he left. Then thought about how he would treat my child and myself. How hard it will be to work with him for my child sake.
Then I start realising how things are meant to be. Slowly the pain does go away. I've accepted not being with a partner and I feel that its OK. Its OK to be alone because then you can be kinder to yourself and work on you for you.
Its hard to see it at the early stages but once you start be kinder to yourself and work on you for you then you realise that its not you, its them. Why he wasnt good enough for you and you deserve better. Its the universe way of showing you that you are in the wrong relationship and you deserve better.
Start healing yourself when your ready and help yourself to beautiful things.. conversation with loved ones, friends and even meet new ones. You are perfect for someone and remember the old tales where Adam had to find Eve, your Adam will come and find you.. (sorry for the religious example. Its the only one I can think of right now)..
So I am hoping this helps.. Be kind to yourself and hope you find peace as it is not you who has to fit to him.. a relationships just fits..
Be kind to yourself and love who you are.. xx