Go back to your wife and baby!!!!!😳

You need to cut off all communication with him.

I would just stay out of it. This could get verrrrrry messy with his wife. 

I would tell him "I was helping you with job advice, because you couldn't see it as purely professional... I'm going to have to end all contact with you. You're married with a kid, go back to your family. If you need more job advice seek the local job counsel."What a jerk! Makes me think he married that poor girl when wanting you and any contact from you at all (even in this very professional sense) was enough to get him packing. I wouldn't want to be with someone like that job or naw.

Your obligation to him ended the day you split. I'm very proud of you for taking a stand against it. Tell him if he wants a female to lean on then he needs to talk to the female he gave his last name too.

Why does he need your help getting a job? And if that's all you two talked about then why'd he feel so strongly to leave his wife and child? If you seriously don't want anything to do with him you will get your number changed and discontinue any other communication 

My advice is walk away. No more contact. It's a really bad idea.

Why does he need your help getting a job?

Keep it strictly business. Make sure all meetings are public, and not super late, don't allow him to take u home, don't go out for drinks. Let him know ur expectations and if he can't deal tell him u will set him up with another person (if u know one) to help him with his job search. Just be honest with him that ur intentions on helping weren't to rekindle any past feelings. Good luck