Have you stopped and looked at your on going pattern with men? Do you truly understand how men think? Sorry, but I am going to disagree respectfully with other, that you have no responsibility for the failure of these relationships. These maybe relationships you should have never entered into in the first place. Two people always enter into the relationship and set up the dynamics that will play out. There is a life lesson here for you and the pattern will repeat until it is learned. Start by taking care of you first, because you are the most important person there is right now. How can you build a relationship when you do not have a solid foundation and are not secure with you. Poor upbringings we all have our baggage in this department, but what you need to learn is how to move forward and not let it define you. Barbara De Angelis Ph.D has two excellent books that saved me years ago. The first is “How To Make Love All The Time”, which has excellent exercises in it to help you workout any past resentments and hurts you may have. In the other book “Are You The One For Me”, this helps identify those unhealthy patterns with men and breaks the cycle. My first marriage was eight years of bad news, which was why I was single after that for twelve years. During that time I had many unsuccessful relationships, but one day I knew that I wanted someone in my life. After reading these two books, doing the exercises in them, within less than a year my husband of twenty years came along. He was out of my typical type toxic pattern with men, because I broke that pattern that I previously had going on in my life. Don’t despair and work on healing you and being happy and secure with yourself. Include in your day 30 minutes focused on improving you, whether that is exercise, self-help reading, writing in a journal etc., this will help too. Good luck.