Should she stay or should she go?

First day at work for a week, coughing a bit but feeling much better. I came back to the following email:

Dear Steve Ayers,

I shall be staying in Burnham for the night of August 9th and have just looked up churches in Burnham and listened to your sermon on Mothering Sunday about Peter. Will you be preaching on Sunday morning the 9th August?

With love in Jesus,

Was I really preaching on Peter on Mothers Day? If so, why?

Still, notice that she doesn't let on as to whether me preaching would draw her to the church or put her off?

I just emailed back to say that she was perfectly safe, I am going to be on holiday.