married woman

married woman sleeps with a man who isn't her husband but she doesn't just sleep with him she has a whole relationship with him and falls in love with him. so now they aren't just sleeping together they are now making love to each other every night but does her husband know? no he doesn't why? because she knows it wrong she goes 4 months with him and they finally get to the fight. the fight she has been dying to not have. the fight about the fact she is still married but yet go to bed and wake up next to this man that isn't her husband. now she feels lost taken for granted like her father said taken advantage of useless worthless she feels dirty ugly hurtful but should she just stop and fall out of love with this man that isn't her husband? can you fall out of love is that a thing? the girl feels lost like a doll a little girl had for 5 months and got bored of so she put it down and never picked it up again. what should the girl do?