Luckily, time does heal all wounds and eventually you will start to feel better and move on with your life. Remember that "there are plenty more fish in the sea!”, and the next one you meet might be your soul mate.
When you are feeling low because you are dealing with rejection, you need to remember that you can take several steps to get over the hurt and get on with your life.
As much as it hurts now, every passing day will make the pain slightly easier to bear. That does not mean that you will get over the rejection quickly and there will always be bad days and good days, but if you start to tell yourself that you will get over it then you will get past it quicker and move on with your life. Try to focus on the end of the dark period rather than the pain you experience as you live through it. If you focus only on the rejection, it will only serve to strengthen the pain that you experience.
Most people take rejection personally and think it is because something is wrong with them. Often though, the rejection is not your fault, but entirely because of where the other person is in their life. They may have just come out of a bad relationship and not be ready to move on yet, or they might have other priorities in their life.
Even if you have been rejected at the end of a long relationship, then the chances are that both of you are, at least partially, at fault. Remember that people do change, and it is difficult to keep a relationship going unless you both work at it.
Irrespective of the circumstances, the best thing you can do when you are dealing with rejection is to learn from the experience and move on with your life. It might be that you are at fault and can modify your behaviour so that it does not happen again or you might come to realise that the problem had been there long before the rejection. If you do find a flaw in your character that leads to the rejection then can work at it.
If you are still in contact with the person who rejected you, you can always ask them why they did it. They might have different aspirations for their partner and are looking for something different to you. It is also possible that they have their eye on someone else or are just not interested in being anything other than friends at this time.
Do not confront the other person if you cannot keep calm though. It will not help things if you get into trouble for harassment or end up arguing with them in public.
With time, the pain does reduce and if you let the hurt go away then it will do eventually. Try to turn the rejection into an acceptance of who you are and not what you think the other person wants you to be. If you change your personality to become the person they want, then you base your entire relationship upon a false impression of you and you may eventually come to resent it.
Somewhere out there is a person that will love you for who you are, not what you think they want you to be. If you can find them then you will be a lot happier for a lot longer than in a relationship based on pretence.
It is not easy to get past dealing with rejection. Every fibre of your being will hurt at first, but with time, you can move on in your life and find a better-suited mate who will make you truly happy again, just as you deserve to be.