I am so confused.  I talked with my therapist and my dad today.  I have always depended on my dad to lead me in the right direction.  They think that I should not file for a divorce, but a legal separation.  My mother-in-law thinks I should give him one last chance. I feel so confused.  My head and heart are telling me two different things. 

Your decision is 100% up to you. What Dad or mother-in-law think should not be a consideration here. If you want a divorce from this man, move ahead with it. If you want a legal separation, go for it. If you want to stick with him, then do that. But, for heaven's sake make it your choice and not someone else's. Best to you, Diva