How to deal with rejection in 3 easy steps
1. Accept: there is no rejection.
This is concept 1 you need to accept.
It sounds ridiculous 'but she/he did reject me. I made my move, I shot my shot.. and they said no'.
There is mismatch.
There is 'not right for each other'.
There is 'people change and no longer feel the same way'.
But there is no rejection.
Wrap your head around this and your life will become WAY easier.
2. Manage expectations and learn about accepting
Accept that just as you have preferences (McDonalds vs BK, LeBron vs Durant, spicy food vs non-spicy) other people have them to, about everything. Including about WHO they date, love, leave.
'But it's not fair' and 'how dare someone reject me' are both thoughts that are results of childhood lies. Your mom/dad told you the lie that you are the most special person and most beautiful person in the world and you bought it. A result of this is the word: ENTITLEMENT. Now you subconsciously believe you are entitled to only yes and to get whatever you want. You'll say 'I know I can't always get what I want' but when it comes to love: you can't handle 'no'.
Nobody owes you that they would want you; not even your wife or husband - they too at one point have the right to choose to leave.
The issue is people think in reverse: 'I want this, so that person should want me'. They do everything based on THEIR wants. How about making your want 'I want to understand what this person wants, and then figuring out if that actually rhymes with who I genuinely am'? Now if people did that, you know.. act like adults, weddings would drop by a 50% rate. Because in large part people get married because 'they want to get married' as opposed to 'being the person someone wants to marry'. Let that sink in. Those are 2 hugely, hugely different things.
3. Have some perspective
Realize what hurts you now in 1-2 years this won't mean a fukking thing to you like how what mattered to you 1-2 years ago doesn't. You move on. The hurt is more about you than about the other person. Of course heartbreak is real. 'No' or 'No more' sucks. But it comes down to this picture that you should not be hearing no and that it should've all been a smooth ride that went your way. Luckily life doesn't work like this, and situations that are not optimal for us get ended, by others or us or mutually. This gets us to the #1 requirement for being happy with someone: to be single.
Relativity and perspective are everything in getting that.