Client calls me because her husband kicks her out, and she has no where to stay......?

and tonight will be her 4th night. i am a hair stylist and aside from doing her hair, i do not know her!!!! oh and the reason her husband kicked her out, she cheated on him, not physically, but over the internet. i mean they have children together, i can't even wrap myself around how she could ruin her marriage this way. she is infatuated with a man she has never met. it's very awkward, her staying here. she is from "out of town" and knows noone. i thought it would be 1 night. now 4?? i am 7 1/2 months pregannt and we have a 3 year old. tonight my 3 yo daughter is leaving to go stay with my mother in law for a week, to give us a break, before the baby gets here. my husband and i had plans this whole weekend, and now what??? i don't want her tagging along, and i don't want here at our house while we aren't here. i don't know what to do!!!!!??? how do i tell her she needs to leave??