Good luck Nilson.    
Guess this isn't much help, but one saying that kinda stuck with me while I was growing up is this.  It's pretty much a general purpose saying.  May not apply to you here but:   If there's a doubt, don't do it. 
You were together for 15 years.  That's an accomplishment I respect.  No matter what happens, you have already achieved more than most men.
Les