I think that for the most part, love is a choice, especially with romantic love. When you decide to marry someone, then you are making the choice of loving them the rest of your life. It doesn't just happen, you have to work at it.

There have been people in my life, men and women alike, that I didn't like at first. Later, upon recognizing why I didn't like them, I decided that it wasn't so bad, or it was a trait that I have, and I could live with those things and I made up my mind to love them. There Are exceptions to every rule, though.