Many of us, have gone through a break up, and had that rebound period of sadness, and loneliness because you feel like a failure. You did everything and gave all your energy and it just was not enough. You can take this as a lesson to move on and let it make you grow as a new person and this will give you a better outcome with dealing with the hurt. Here is a great video that helps you think positively about road to take after a break up and making it a positive experience.
When you meet someone, men or women, everything in the beginning is a beautiful painting, and you don't see the red flags or maybe there are some. You try to give them the benefit of doubt that you can trust them with your feelings and time. It can be deceiving to find out that the whole time it was a lie and fake. It can be very painful because I have been there many times and even recently. You can give your all and they can lie to your face and make you look like the bad guy at the end. Here is a video that will help understand that guy that just is not right for you. It is not you that has the problem because you did everything that you were suppose to. You may have sense something, but you wanted to be wrong because he sweet talked you. The lesson learned is that you need to not let it kill your spirit and destroy you because you still are a good person. You just have to find the one that gives you the love you have in return.
When you are in a relationship with someone who is a narcissist, you sometimes don't realize the truth of the situation until you do something to make them angry. Yes, they may love you, but the idea of you. Yes, they fed you lies that only painted a beautiful picture, but it was never real. In the end, you are the villain to them and nothing will be there fault because they only care about what they can get out of you. Here is a video that talks about how to deal with a narcissistic person.