I got tired of putting in all the effort to get to really know someone, having a relationship with them, and then realizing it won't work out.
I used to think it would be great to have an arranged marriage where you have to stay together and work things out no matter what. But, then I realized everybody is nuts. So, it's better to stay alone. Ha! ha!
The problem is I still really find women attractive. So, my mind / hormones makes me think a healthy relationship is still possible. Why can't the perfect person for me just show up and say, "Hi, it's me!" Then I would be totally willing to make all kinds of effort.