I believe there is a lot of truth in the text included on the gif. You are right, it won't be love that hurts. :-)
This post was edited by Benedict Arnold at May 27, 2017 6:51 PM MDT
However, true intimacy is rarely polite. And people who love are usually more open and vulnerable to their spouses and tend to keep their guards lower against inadvertent pain.
But the potential benefits of such a relationship far exceed any pain.