Because Mike couldnt get it up anymore after Laura turned in to a man?
lol ...That and because a once always smiling sweetheart now sports a permanent "scowl" and a big head/ego
it changes people (for me for awhile i got into a lot of fights/trouble while bouncing in clubs...i racked up a few arrests for assault and battery on club patrons/for "others" it takes the form of a "mid-life crisis" and as stated a "perma-scowl" and ego problems)
some people "Morph" into a totally unrecognizable person ...from a sweetheart that everyone loved into this not so nice/self absorbed person .....