My husband's ex

Ok so my husband found out he may have a daughter who is 13 yrs old now. His ex whose name is christal wilkens( springer) told us 12 yrs ago the kid was not his and then a yr ago she contacted him telling him that the little girll is his. Then she started sending him pictures of herself and telling him she was still in love with him. and boohooing how she didnt want to be without him. She was telling his mom she and ejay were going to get back together and my mother in law had to tell her he was not gonna leave me to be with her. then she kept it all up and my hubby had to tell her he wasnt going to leave me for her. he told her he just wanted to be friends so she started being a bitch to him. So he decided to not talk to her again he changed his email addy and deleted his myspace page so she couldnt contact him again. She was messing with this other married man who left his wife and kids for her. we cant get a d.n.a test because she gave rebecca up for an adoption 10 yrs ago. christal slept with him and 3 of his friends in 1 nite and then a week later she went back to her son's dad clinton so what makes her so sure to say she is 100% sure rebecca is my husbands kid. If the kid is his how does she expect him to make up for all the yrs he missed. she wasnt worried about him being a dad to her kid she just thought she could get him back. i have been with this man for 13 yrs. and he hadnt talked to her in all this time until she tracked him down on myspace last yr. i have 4 kids with this man and she knew it and she still tried to split us up. now she is going around saying that me and my hubby are harrassing her wtf. we havent spoke to her in a freaking year.