I think that is absurd! I have been dating a girl through mpwh for 6 months or so now and there has been zero increase in symptoms. She takes a daily med for it while I do not take anything. No more OB's or anythign for either one of us.
While I have heard that stuff about possibly spreading different mutations or whatever, the reason I find it absurd is when you consider the alternatives. 1) Only date people who DON'T have it and possibly continue spreading? 2) not date anymore?!?
H dating sites are wonderful for a plethora of reasons. I strongly recommend checking them out.