The airport was busier than I expected, with people hurrying in different directions, suitcases rolling behind them and announcements coming from the speakers overhead.

I kept one hand on my luggage and the other around Kelly's, making sure she stayed close as we walked towards the departure hall.

She was practically engrossed in her book. I took a minute to glance at her and didn't notice the man coming towards me until we collided.

"Oh, sorry!" I said immediately, stepping back.

He caught his balance, his hand briefly touching my arm to steady me before he let go.

"It's fine," he replied.

I looked up to apologise properly, but I...