What does it mean when a girl texts while masterbating? does it mean she likes you?

I have been in this situation with like a few of my female friends and I don't know if that means something. They suddenly text me with a hi and when I ask them what they're up to they always reply with the same exact thing, "I'm doing something embarassing don't ask." And it seems like they're insistent on me knowing it. I want to know if it means they like me or somethiing? if they do I've got a serious problem then lmao