Hi Sophmum,
I can relate to how lonely this way of life can be, especially when you have children. Nobody thinks you’re lonely because your partner is with you but if you’re like me, you might feel like he’s there in body but not fully with you and ‘connected’ with you.
Also, have you told anyone you trust? That’s sometimes difficult because you may feel you’re betraying his trust.
I understand why you want to leave but if you do want to try and keep your family together, you could let him know what an impact this is having and tell him truthfully how you feel. You could offer to support him on a visit to the doctor and see how he responds?
Do you think working and being a dad has been hard for him to cope with? Or was he drinking like this beforehand?