Unlike the crazy MIL stories; even if you're happy she'll continue remembering the one trait she didn't like in me (not letting go), play games, tarnish your reputation and not stop unless your spouse intervenes. I've heard even some guys have problems with the MIL too.
Whenever I heard miracles stories about the spouse parents accepting you, it's the FIL that warms up but the MIL doesn't; she just pretends to be nice while forever disliking you. Serious why? Why are there more issues with MILS than FILS?