Ebay are stalking me?

It’s really weird.For the last week Ebay have been emailing me their deal of the day.” Soft slow close white WC toilet sest with 5 year guarantee new”
Is it just a coincidence that I’ve been making a film about a toilet? ..and tweeting, texting, emailing and facebooking (is that a verb?) about toilets. If so how does Ebay know.
I only bought John Lennon glasses, sd cards and some lighting from Ebay.no toilet’ery stuff.
#puzzled #suspicious #paranoid