Broken Trust

How do you fix trust in a marriage? My hubby has lied SO much about things and my trust in him is shattered to the extent that Ive considered divorce. He's currently deployed and has told me the chaplain is willing to hold sessions via FB messenger (video), but idk if its even worth it. Ive begged him to go to marriage counseling with me for months before he deployed and before my son was born and he got upset. He gets so angry and defensive if you talk about feelings, an addiction to porn and masturbation has come out of the woodwork and he has put myself and my infant son on the backburner for so long.... Im almost over it at this point. Any advice is welcome