Watch the interview about 30 minutes in on the RTE Player. It's almost if he left it right till the end deliberately, in case she was funny about it.
It wouldn't have been mentioned on a UK show.
I'm not in a place where I can watch right now, but if it's as you says that's very much a dick move on his part. I suppose she could have just said 'no comment', but even that could be read as inferring guilt. Not a situation anyone deserves to have sprung upon them.