You get 30 reactions a day before you get that message, doesn't have anything to do with Dima's game. depending on your time zone it resets at different times
Hell I have started to lose track of the number of girls in this game that are too petite for my tastes, that I have gone after anyway just because the option is there.
My last GF's (RIP) mom was hotter than my girlfriend. Mind you my last GF WAS a gran (and not much older than I). Her mom didn't get that fire in her eyes when she looked at me though.