It helps not to discuss your dates with friends to begin with. Friends have a tendency to help you romanticize and read more into the situation than what is actually happening. A parent or dating coach will help you hold back a little more until “HE” shows he hand first.
I think every girls starts to picture herself “married” to the guy to see what it would be like. The more you date the guy the more comfortable you get with the idea. As you discuss it with friends they push you more into the fantasy and tell you “for sure, yeah he is in to you, wow he said that, and so on…” What you really need to do, is just take each date for what it is and wait it out logically to see where it is heading.
How does one get over it? Everyone is different. If you can pull out your bitachon and emunah and lean on that, it would help a lot. Know that it is going to hurt a lot, but that this one is going to bring you closer to your real true zivig. Understand, if you could, that everything happens for a reason. Try to realize that if it wasn’t meant to be, it is better that you found that out now and not further down the line when you would have been even more devastated.
Do something nice for yourself. Take a spa day. Surround yourself with positive energy so you can feel and believe that it has nothing to do with YOU and may not have anything to do with HIM, it is just not meant to be this particular match. LOVE yourself and surround yourself with people who love you. Go to the pet store and play with the puppies.