I don't even think it's a lack of common sense. I actually think it's sheer laziness - he though it was 'in hand' because he decided he couldn't be bothered to actually do something about it and potentially expected someone else to sort it for him, then couldn't be arsed to chase it/find out what was happening/sort it himself. So he free wheeled along while you were peddling in the other direction trying to sort the purchase of a new property.
Let this be a stark signal of what he will always be like. Lazy, complacent and generally not interested in taking on some mental/emotional work load to help move you both forward as a couple. It will always be on you so sort anything important. I worry that this is some sort of male default mode.
This^
He just couldn't be arsed.
Now then, about his ex......
They're on good terms, yes ? Is it because he didn't want to rock the boat with his ex partner ? Was him coming off the mortgage and therefore, I assume the deeds of the property the last vestige of what they had ?
Why didn't he treat the purchase of your joint property like an exam if he's so academic, i.e. everything in place, revision done, know where the exam venue is, what time and date of the exam, what paper for what subject the exam is for.
All he's doing at present seems like to little to late. Especially as you just can't listen him presently as you are so furious/hurt.
He says, 'well, I've been in touch with the mortgage company.' Erm so what ? Has he:
- Spoken to the ex and say he wants his name taken off the mortgage/property deeds.
- Told the mortgage company relevant to the old property that he wants his name off the mortgage and how does he go about it.
- Told you what he meant by, 'in hand' by whom ? When ?
What happens if you contract cancer/lose your job/get involved in a serious car accident/house get burgled etc etc What's his response to that ? Do & say nothing because he didn't know what to do or say ?
I saw a documentary on why people commit bigamy. Not relevant in this case but basically, they don't have the maturity to tie up loose ends, i.e. get divorced before marrying again.
Sorry, him telling you to stop nagging him about this, then, in the solicitors office, it turns out he's done nothing is a huge red flag to me.
It's achieved it's aim, though. He's got a bit partial to living at home. He can do without the aggro of moving out, getting his name on a mortgage, monthly payments, you in his ear day in day out, just for it to end, you know, like the other one did.
There's a 'mental block' gone on here and a refusal to accept any responsibility for your joint future together.