Please advice her responsibly

Good afternoon ma
Thank you for this privilege ma.
I based here in South Africa and I'm happily married with 2 kids. I got a salon here so when I was in needs of hairstylist I remember my long time colleagues we once worked as a stylist in Abuja so I contacted her even though she's married with 3kids too but with the way things are going in Nigeria I thought she will be ready to hustle for the kids. So I talked to her and asked her if she will be able to come down here that I just needed her to do her passport I'll sponsor the visa and ticket she will only be paying back every month. I didn't PRAY to much about her. I told my mom about it and the following day she told me not to take her that she had a dream seeing her sitting closed to my husband.i laugh it out that my mom is being too much. To cut the long story short she came over and we continue our business. I started having some dreams too but I didn't take it serious. The one that scares me was the one that she was besides me in the dream trying to make me sleep so that she can go to my husband and the other one she got pregnant for my husband. We are staying together for now because I want her to be able to pay me my money before she can stay alone plus here we pay rent every month. And I noticed my husband anytime he's together with her his thing always rise. And I noticed she also came with some sweetener like the once you sell too. What should I do about this and how do I handle this?