To me, love is accepting the other person as they are and not asking them to be someone else. I don't mean that people in love can't ask each other to change in minor ways, but love, to me, means being able to accept who the other person really is.
When you are truly in love with a person (again, just my opinion) you are free to really be yourself without worrying that the other person is judging you and being critical of you.
When my wife and I were first going together, I knew there were things wrong with me (immaturity, mostly -- I was only 18 after all) but I also knew that she accepted me as is. I worked to change, but not because she made me.
So, to me love is feeling that the other person totally accepts who you really are (and it is totally accepting the other person...).