To quote my doting mother-in-law; "I suppose congratulations are in order."

According to The Independent, an "insider" who really cares about the couple has confirmed the engagement rumours via E! News: "They are so in love. He is in a great place and Mara and Jonathan really complement one another. He is healthy and happy and starts shooting The Damascus Cover in January." Just to slip that in there.

Seemingly the couple were "snapped" grinning wildly as film producer Mara showed off her "huge diamond ring". If reports are to be believed, it's this rose gold boulder of a thing pictured here. They were attending 25th Annual KROQ Almost Acoustic Christmas at The Forum in Los Angeles.

As for whether Jonathan will

get himself arrested in an airport

en route to their honeymoon destination, those days are behind him. Here's what he said in an interview with The Mirror last year:

"I was wild, I was as wild as you can get... At some point you come to a place - and I was lucky because some of my friends have never got to that place - where I saw it as something that was separate from me. It is kind of insanity to do it to that level. I was able to come to that realisation and I look for different things in life now."