I reckon it should be sensitivity, in other words, the ability to understand other people's feelings and problems. I don't care about her style, wealth, beliefs, race, etc, but I do care about if she is tolerant as such and able to consider not only from her perspective, but from others' as well. Dealing with things in a selfish and thoughtless way is the thing I will never tolerant, and lacking of sensitivity at the meantime means losing the basis of communication between a couple.

If she truly loves you unconditonally and you love her unconditionally; style, beliefs, wealth and behavior are secondary. Style fades, beliefs wavor, wealth crumbles and behaviors change. Love should last forever, love is a commitment, not a feeling.