Dear Mother-in-Law,

It was a shame you had to stay here. For such a short time, I thought I might have coped, but it was unbearable. Seeing you leave, the relief was immense. When I heard we might see you again soon, I wanted to end it all. By saying goodbye now, I hope I will not have to say it to you again for a long time. If you have the opportunity to spend Christmas elsewhere next year, please do.

Not much love,

Matthew.