Hi, I love your Dotty! She is really lovely!
I used to have a gerbil years ago too! I didn't know much about their care though ( it was over twenty years ago) and I didn't know that they are very social and that they really need a friend. It is best to keep them in pairs!
You could consider in the future to give her a girl friend. It is possible to bond gerbils on neutral territory first, so you would have to scrub up your cage first and all its accessories.
Also gerbils are not like hamsters and introductions of two are much easier. Two unrelated gerbils can be bonded with much younger gerbil e.g. baby one.
She has you now for now though, and that is good anyway!
