So glad the weekend went so well SQ and you and your DH were able to emotionally connect as well as be physically together.
The thing about depression is that it fluctuates, sometimes we are fine and we can be the person we were before the depression took hold but then for no apparent reason the black clouds will descend and we will feel flat and sad and empty and want to cry, and this is very frustrating and difficult for people to understand because we don't understand these fluctuations ourselves.
I'm wondering how you are going to know if he is taking the ADs as I think that is the most important thing, and cutting back on drinking. Does he have plans in place for how he is going to cut back. I'm just a bit concerned that if he has been drinking too much for a long time he may well want to cut back (or stop altogether) but might find it too difficult. I think if the therapy can help with the drinking then it's a good idea, but usually people need meds to lift their mood before they are able to access therapy.
It sounds like he was so relieved to feel well at the weekend that he was ready to agree to anything to make you happy, but I think you need some plan between you to ensure he does take the meds and controls his drinking, as otherwise I think it just might not happen. Maybe I'm being too cynical I don't know.
It's not surprising that he has disconnected a bit now, as he is obviously feeling down again, hence the sobbing on the phone. Does crying help lift his mood do you know - I ask because this usually helps me when depression hits me. I have been sobbing for an hour or so today and my DP who is used to this just holds me and I then feel a sense of relief. It may not be the same for your DH - bouts of crying are very much a symptom of depression and he really needs to start those meds.
I think the thing about wanting space is not so much pushing you away but is more pulling himself away from you. Maybe he doesn't want you to see him when his mood is very low - maybe he is ashamed of you seeing him like this (I will only let very few people see me when I am in a very depressed mood) I'm not sure, but it is very natural for us to want to withdraw when we are depressed. Have you talked to him about this need to be on his own. If not, I think you should, as there will likely be a reason for this. You need to be "there" for him and not put too much pressure on him - listen and re-assure him that he will get better, but you must also ensure as far as you can that he is taking the meds, and keeping his drinking to a minimum. Maybe you have to be assertive and tell him that you need to monitor this and this would mean you visiting him in his flat on a frequent basis.
I don't think there is any possibility at all that you are going to drive your DH away - on the contrary it seems he is very emotionally dependent upon you, as he phones you and texts you and even doing this is difficult when our mood is very low and we can only reach out to those we love and who we know love us back.
SO it's like walking a tightrope for you I know between being supportive but at the same time being assertive about the meds and the drinking. Not an easy task but please don't shy away from this on the basis that you will drive him away because I'm sure you won't.