Your 7th house of relationship is ruled by Mars. Mars is conjunct Uranus the planet of instability and unpredictability. You also have Venus, the natural ruler of love/relationships square Uranus. Internally and perhaps unconsciously, you like what is not available to you. This could be liking someone who lives far away, they are not very interested in you, married, or off limits in some way or another. Typically, there is usually some sort of imbalance between you and your romantic partners or the imbalance develops very quickly so your needs are never getting met. In addition, you have Saturn conjunct your Mercury and square your Moon, you can be prone to depression and pessimistic thoughts. Your best bet with dating, do not jump into a relationship right away. One issue with the aspects I mentioned, Uranus has a tendency to push a relationship to develop quickly and then suddenly it falls apart just as quickly and you don't really understand why. Date a man as a friend for a few months, in fact, you will want to have a few men you are dating at the same time as it will take pressure off the main guy you are interested in. Trust me, I have dealt with this same dynamic in my own chart and it's very discouraging to be hopeful about someone and have it unravel right before your eyes. I have learned my lesson much later in life that you have so change your dating style. Also, try and give the guy who is not your type a chance....again develop a friendship so there isn't pressure. You are programmed to like men who are not going to be good for you. Also, right now you have Transiting Uranus moving through your 7th house too, this doesn't help the stability factor within your relationships although it could have brought some exciting men to you life, they can leave just as suddenly. The good news is that it will eventually move out of your 7th house. Last word, even with difficult natal aspects like Uranus to your 7th house ruler, it doesn't mean you can't have a loving relationship and many people do, but keep in mind you have your own need for freedom within the relationship as well. Try to come to terms with this so you don't project it onto your partners.