Beware old flatmates

My friend Molly says I'm always looking for meaning in things. She says there isn't always a hidden meaning and things don't need to be over thought.
But I can't resist the magic of 'signs' and 'hidden meanings'.

Tonight it seems there was nothing hidden about it. My old flatmate is coming to stay in a fortnight and as we've had a chequered past, I'd been mulling over the best course of action.
I sent a text to a wrong number this evening. It pinged back with the words: Beware old flatmates!
Message received loud and clear!!!