Why would my friend keep helping her cheating husband?

He's been cheating on her forever and he just bought a house where he keeps his business 1500 miles away. For him to stay half the week. He needed help moving so she's flying there to move all his shit LOL. I told her what makes u think he's not still cheating and that he doesn't bring her back to his place.

Why would my friend keep helping her cheating husband?
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