I think that it is perfectly OK for a 32 year old woman to date a 25 year old man. Older men date younger women all the time. I don't know why it is a problem when women date younger men. If the man and the woman have things in common and they enjoy each others company I don't see a problem with it.
I think that if someone makes you happy, then it doesn't matter what age you are. And if the roles were reversed and the male was older than the female, no one would care. 7 years isn't really that big of a difference.