I agree with what others have said on here. An intresting thing to do would be to continue in your quest to find out more about this Deity. If she isnt letting you know who or what she is yet, its for a big reason and an important one.
My advice is to keep patient, because with patience comes great rewards.
I agree also.
My experience is that getting to know your deity is can be a slow going process. They don't give you all the answers right away because they want you to learn for yourself. Learning through study and through meditation etc with them.
If a deity were to announce who they were outright you would be more likely to react very differently than if you got to know them first and then learnt some of their more commom names. They want to get to know you too!
They are definitely playful and loving in this way and definitely have a good sense of humour, at least from my experience. They laugh with joy that you are learning and seeking and believe me they give you hints along the way.
I have only learnt this year the name of the two deities I have been working with for the last 8 years. I knew it way before than, just didn't have the nerve to come out and just say it. And of course they have always been there.
I might start a thread on this topic, if anyone is interested in knowing the story, it's a long one.
But my advice is to go with how you feel deep down, in your heart, you know she wasn't laughing maliciously.
If you would like a name to call her, perhaps ask her for one you can call her in the interim. I called Dionysus George for years, and still do, because that's how i've always known him.
I think all the advice people have given you so far is very valuable. BB
