He needs to be alone and not with anyone. Its okay for him to zone out but not okay for you to have some alone time
Not being right for one person hardly means anybody should be alone & not with anyone.
Some people looooooove the combo of connected-intensity/ independence-relaxation of being partnered with someone with an artistic temperament, or introverts who need time to recharge/extroverts who take their “alone time” with 20 other people, or trauma peeps who manage their stress levels with isolation, or brilliant minds getting lost in their work, or, or, or, or. (Because it’s not an uncommon pattern, a whole heckuva lot of personalities types are on/off, for a giant whomping array of reasons.) Whether it’s on/off like a light switch, or the gentle swell and fall of a wave; whether it’s a daily occurance for hours, or happens sporadically for days/weeks/months. Those patterns suit some people right down to the ground
Other people? Don’t mind it. Whilst others -like the OP- can’t stand it, and it makes them miserable.
I’d hardly think that wanting your partner to NOT be miserable & in pain speaks badly to his character. Nor is it unreasonable to want to build a relationship on a foundation of trust, nor to put your child’s needs above your own.
TBH, from what’s written, I’d say the OP did a pretty damn good job in choosing a guy to date. Not right for her, clearly, in the long term... but that variable temperament WITHOUT abuse, scratches one long ingrained need/habit, whilst good judgment chose someone that not only doesn’t create that via the cycle-of-abuse, but is honest enough to break up when it’s clear they don’t work together, rather than twisting and manipulating her into staying with them. That’s
dayum good work, choosing this bloke to date, coming out of an abuse history. When it’s far more common just to jump from one abusive relationship to the next to the next to the next, clinging on for dear life no matter how bad things are. Next steps, of course, finding someone more compatible & being willing to end it when it’s not, and keep those standards raising. But as first steps, go? We’re talking pole vault.