The amount of CRAP you put up with when you are in a relationship with someone. This includes one's patience to give the other person their way, forgiving them or looking past their wrongs and mistakes, and repeatedly having to give and not receiving the same amount in return.
This can be both a good or a bad trait to have. Patience is a virtue, but too much giving and not enough receiving could be interpreted as a doormat.
Marc Anthony has high love tolerance because he is always tested with his patience with JLo's diva antics.
My friend has higher love tolerance than what I thought she would based on the person she carries herself to be. The amount of *shite she puts up with in her love life, would never be carried the same in other relationships in her life.