tu know when tu look at them and get weak in the legs and that tu can't breath when they smile at tu o (sorry for saying a twilight line) it's no longer gravitey holding tu to earth it's them. tu think about him/her all the time and you'll know.
tu don't know, really. tu just have to trust yourself.
I don't think it's about shortness of breath o weak knees o anything. I think it's about understanding and the willingness to put up with their flaws, no matter how severe. If you're hoping for the person to change in one way o another, then it's probably not the right person.
