With my particular husband, it would bother me quite a bit, it would weird me out, freak me out, and make me tremendously concerned about what was happening. Because my husband talks about us at the drop of a hat. He talks about us while the hat is still dropping. Heck, he practically says "I'm Robert, I am married and have a 6 year old son" when he meets people.
He met the CEO of his company, and talked about us in the hour he was at the man's office! And when he went back a week or so later, the CEO asked about us (by name, which is impressive) and they talked about us again!
He recently got a replacement wedding ring (a drug he's taking causes puffiness, along with his extra weight right now, and we didn't want to make his real ring bigger, so bought a cheapie ring for now), and he feels safer...while he was ringless he brought us up even FASTER. (he doesn't think he's a hottie, but he knows that it doesn't always matter when it comes to workplace relationship confusion, and just wants everyone to know up front that he's got us and is blissful)
So yes, with my husband, I'd be concerned.
You know I think that the fact that he has been working 15-16 hours a day with no complaints probably makes them think that he has no family to get home to each night.
Definitely possible, especially if that's not the norm. At hubby's job those sort of hours are needed sometimes (and right now he travels for work, so he'll be gone for days, sometimes a couple weeks), and some are always surprised that he can do it, with us at home. But that's the point, he doesn't have to worry about the homefront because of us. If he were single, he'd have to worry about the house, etc etc...
Maybe he KNEW she would react the way she is and he really didn't want to get into it. Maybe he knew it would be full blown thing going on for who knows how long and he wanted to watch the football game or was TIRED from working under stress and long hours for 2 weeks and thought in his maleness "if I just don't respond I won't have to deal with the ongoing commotion"
And if that is so, that's just pathetic, b/c that sort of reaction always makes things SO MUCH WORSE.... But some people just never learn and keep doing that and digging themselves far deeper than they would have been, and destroying their relationship and the mutual respect often found in marriages in the process...