What is it that some of us seem to only choose the losers or the wrong persons ?

I have to say than since a year, since I moved to Vietnam, I met ONLY wrong guys !
All started with Ben, an american Viet Kieu who moved back to Vietnam 2 years ago. Quite handsome, he is the perfect exemple of the guy who is looking for his roots but does not really where to go... At 41 (yeah I know...), he lost his job, moved to Vung Tao, moved back to HCMC after 6 months to start his own business. The sweetheart was cute but not much in the head or the heart !
After that, I met Clemens who I had a lot of fun. Here again, he is very cute (tall and cut) and smart. But I guess he has a broken heart and does not really know what he wants either... We met several times since we had sex ad everytimes I have the feeling that if I showed him that I am ok for having great sport once again, he would go for it. But I am not the kind of girl who begs for fun all the time. The guy has to show his will as well.
Then I met this french dude, Eric. 34 and very charming, I could have seen myself with him. But as I do not fall with only a smile and a winke, the guy got tired I gess and went for a 1 time-shot with another frenchy who was probably a little less demanding than me. It is ok really !
And last but not least, I met Brad, this guy from Boston. Fit, muscular and cute. But there again, something is wrong. The guy keeps sending me messages (5 a day) but nothing more than messages... Can anyone tell me how guys work ? They were supposed to be easier to understand than ladies but I still have a doubt on that :-)

hummmm.....