Opposites attraction, How real is that?

Funny how we though it was only in the sciences that opposites attract but when it comes to humans, the same theory also applies.

There is this neighbour of mine who recently started going out with a girl x3 his size, I was much surprised to see them together and been wondering if love is this blind, Wow!

There must be a string attached to this and if there isn't, Love is very Blind


What kind of love will u call this ?