Indeed.
The phrasing of This house is like our own little bubble where can focus on each other without feeling like we need to be available for other people socially for a few weeks while we soak up time as a couple is really telling.
The OP is so focused on each other, she failed to notice that her other half hated being there and had no idea he was bored. Instead of him being able to tell her how he felt in this shared feelings utopia he didn't think he could tell her how he was bored.
It's total bollocks to say she was remotely interested in her partner's feelings. She had decided that's what they were doing and that's what was best and romanced it as 'special time together'. Rather than admitting it's her dictating what they should be doing and actually having an equal relationship at a key time. It's really unhealthy and actually rather than being angry and annoyed at him, she needs to take a long hard look in the mirror here.
This was all about her and he has been passive rather than complaining. That's not healthy when about to have a baby cos it's liable to all come out in the wash in a couple of weeks of sleep deprivation.
What is clear from him messaging others, is that he needs support from others rather than being forceably isolated. He isn't going to be able to best support the OP on the big day if he doesn't feel supported too. The idea that a couple should only have each other for support for birth is naive. As soon as the woman is in labour, she's sure as shit not giving the man support! So where does he find that support?
The OP has created a situation which is super controlling, blinkered and self centered.
I can't help but think there's a back story of insecurity or a possible history of cheating somewhere in this mix too. I get the sense the OP doesn't trust her other half and is suspicious of his relationship with colleague.
Either way, this romanced idea of a perfect bubble has just popped because it's utter bullshit to try and gloss over clear flaws in the relationship and problems with communication in the relationship