Sometimes it seems like, no matter what you do, you just can't seem to make things happen the way you want to in your personal life. You may take past setbacks in love as reasons to feel sorry for yourself, and you've definitely taken old, failed love affairs to heart. You may be cynical about love at this point; you're afraid of rejection, and it comes out in your relationship as a certain, constant level of defensiveness.
You have a hard time letting down your guard and letting someone really get close, because you've had bad experiences in the past and you're bound and determined never to let that happen again. It's definitely a good thing not to repeat the same relationship mistakes again and again, but you also have to realize that loss is a part of life, and of love. There is no such thing as a perfect love that will last until the end of time, so you need to learn to relax and appreciate what you have when you have it. Until you learn that lesson, however, your love life will be fraught with frustration. You'll tend to feel inhibited when you're out on dates, and your date may easily rub you the wrong way without even meaning to do so.