Research points to us being attracted to people who are similar to us — both physically and in personality. Despite romantic comedies hinging on the idea we’re likely to fall in love with someone with completely different qualities to ourselves — and the fact that about 80% of people believe this is the case — there is very little scientific evidence to suggest it’s true. Also, an article published in the journal Psychological Science suggests that if someone looks similar to ourselves, we are more likely to trust them.
Source: FS – All – Science – News 2
It turns out opposites probably don't attract — here's why we like people who are similar to ourselves