Does marriage nullify age of consent laws?

If a 15 year old is marrying a 48 year old then he's probably a pervert. My advice. Talk your friend out of this marrage. Its too big a gap in age. When he dies she'll be looking for a new partner and she will be (uming average age is around 88 yrs old) She will be 55 and i dont know many men interested in 55 year old women. Think long term. In short. It's too big a gap and this guy is not the one for her in my opinion.