No, if you are a legal owner of the home moving out won't stop that nor stop your right to a share of the proceeds if the home is sold. It might not even stop your share of a legal right to a share of the proceeds even if you aren't a legal owner of the home.
However, your "share" depends on a whole host of legal factors...none of which you have chosen to disclose here.
Her husband kept her barefoot and pregnant for years.
Her husband beat her and she has the scares to prove it.
Her husband would not allow her to to retain full time employment because she is a foxy chick and he is jealous as hell.
Her husband is a drunk.
Her husband gambles away marital assets.
Her husband leaves beer cans all over the house while she is getting her nails done.
Her husband farts in church.
What more do you need??
Woops, almost forgot these:
Her husband is a child molester.
Her husband cheats on his income taxes.
Her husband is hiding marital money from her.
Take your pick.