That is what I mean, Ali - it is the OP that lets us clearly see the MLC, but it was there smoldering all along. We overlook it, we rationalize and explain away all the little things. The other person is something we cannot explain away. The reality of MLC hits us when the OP is discovered.
if people are going to assert that virtually 100% of MLC's include OPs, here's a related question - does OP automatically mean MLC?