why did gram leave gramps for the egg man

From the text:

I once asked Gram if she would really go back to the egg man if Gramps cussed too much. She said, ’Don’t

tell your grandfather, but I don’t mind a few hells and damns. Besides, that egg man snored to beat the

band.’

'So, you didn’t leave Gramps just because of the cussing?’

'Salamanca, I don’t even remember why I did that. Just foolish, I guess. Sometimes, you know in your heart you love someone, but you have to go away before your head can figure it out.