I’m not sure how to react to your opening post op but here’s my penny’s worth,
You say you have three small dc and they are getting more independent and that you scrape by on your dh’s wage. Do you mind me asking if you work outside of the home too?
Does your dh feel overburdened by being the sole bread winner do you think? (If he is the sole bread winner I mean?) It’s quite a lot supporting a family of five financially on your own. Could he be secretly resentful and expressing it by “quietly quitting” or whatever it’s called and doing the minimum? It might even be unconscious resentment on his part, particularly if you are openly critical of him a lot of the time?
Aside from that, lots of marriages hit the doldrums around the twelve year mark and you are just coming out of the parenting trenches; perhaps you are both feeling worn down by life? Do you ever do anything fun together? Do you ever prioritise time away without the dc?
I don’t really understand the voicemail thing even after you explained it. Are you suspecting him of having an affair? That needs some proper communication between you, It doesn’t sound like nothing if a normally uncommunicative guy was crying on the phone to the police.
I hope this isn’t the case but has he got someone pregnant? Has he got involved in some sort of situation where he is being blackmailed or he is out of his depth emotionally or is he in some sort of financial debt? I hope not, but could he be keeping another woman somewhere? I know that sounds ludicrous but stranger things have happened and to me your husband sounds like someone who is suffering under enormous amounts of pressure and stress. Like the burden on him is so great that he is just going through the motions?
Why did the woman on the voicemail behave so strangely? It must have been something serious unless she has a mh issue?
I really sympathise with you though op because the emotional distance between you and your dh sounds very lonely,
In your shoes I think I would try and get childcare for a weekend and go away somewhere with your dh. You say he is fundamentally kind and hard-working and a hands-on good dad. Try and focus on those things and do not, whatever you do, criticise him. Try and approach the weekend openly and just ask him if he is ok? And listen without commenting, Give him the space to open up. I know the emotionally distant thing is very hurtful to you op, but men I think sometimes struggle to open up to women if they feel very criticised and low in themselves,
He sounds like he has totally lost pride in himself and has lost his confidence and that there may be something else going on in his life unconnected to you and you need to talk in a very calm, non-combative way and try and get him to open up.
Could he be ill without knowing it? When did he last to to the gp and get a blood test? You say he is overweight, and his eating habits are bad? How is his quality of sleep? Does he exercise at all?
Sorry if it sounds like I am on your dh’s side, I am really not, I would be resenting the passivity in him just the way you are, and his personal hygiene and shower habits sound gross, but the way his head dropped when you said your feelings hadn’t changed made me feel a bit sorry for him and like there is a feeling man in there somewhere, and that there might be something else going in his life on that he daren’t tell you about. So good luck getting him to open up op!