what is proof of cheating in the eye of the law

My son in law left my daughter after 2 months of marriage. She is pregnant and in AR is not allowed to divorce til after the birth. He already has a new girlfriend. My question is: Son in law will be 22 in June or July, his girlfriend is 16. Is that legal in Arkansas? I keep getting conflicting opinons form people I know. Some think it is, and some say it\'s not. Also, He is still married, but says he isn\'t nor has never cheated, but to us he is cheating right now. And we have a copy of information the girl put on her myspace where she says how long they have been together, and it predates his leaving my daughter. Is this proof enough of adultery in the eyes of the law. Thank you

[CommonLAW]

Arkansas statutory rape laws define the age of consent to be 15 years old. If you are 18 years old and you have sexual relations with a partner who is under the age of 15, you are breaking the law. In fact, you are breaking the law if you have deviant sexual activity with a person under 15, and even if you engaged in sexual touching with that person.

There is no doubt there is a relation between your son in law and the girl, almost undeniably it is sexual... but it's not a crime. Adultry (however) is a ground for divorce in Arkansa.

He is acting like the reason he wants a divorce is because someone told him my daughter cheated and may not know the paternity. This is not true and my daugher knows without a shadow of doubt that he is the father. He left in Dec. and the accusation of her cheating was made on the 2nd of Feb., 2 days before he changed his myspace page and said that he was falling for a 16 year old girl. But he has told several mutual friends that she cheated and doesn't know if he is the father and also has put her name with those accusations on myspace twice, once on a blog and once in a comment to a friend. I've been told that there isn't much we can do about this, but it is not fair that he can slander and use her name for all of cyberspace to see and she just has to take it when all he has is hearsay from one of his freinds. his friends. We have proof that he has and is cheating, but we haven't put his name with those accusations on myspace for everyone to see. Seems like everything falls in his favor and he can say and do whatever he wants and get away with it.

[CommonLAW]

Guest - I'm a dad, I have four girls, I know that you are emotional about this and rightfully so. If you want my 'unsolicited' advice, here you go:
This guy is a creep. If he didn't leave or cheat, he would have soon anyway. Your daughter made a bad judment call, there's no turning back the hands of time. Stop worrying about what he is doing, stop worrying about what he is saying - don't get roped into it, there's no winner.
Help your daughter be the bigger of the two people - She will look to you. Show her how you would deal with a creep BY IGNORING HIM. Get the divorce, be done with him, move on and try to keep your distance (to the degree you can). No need to tell you this, don't allow your daughter to fall for his manipulations... rats have a way of getting what they want from women and stringing them on in the process - Don't let this rat back in.
Good Luck.