So sorry to hear your pain! All I can say is you are not alone, if you need to scream then do it! Give him his month and read the posts on detachment, read about forgiveness (it is for you and not him) when your ready. Focus on yourself, hard to do but it is what has to be done. Keep posting and reading.
M 21 years XW 43yo, me 41 yo S13 BD March 2016 - she asked me to patient... End of June - I started the D process. D final 2/23/17 "He who forgets will be destined to remember" Eddie Vedder