Opinions on random texting?

So there's this girl that I work with - we're good friends but we don't get to talk much as she's always busy. I think we may like each other.

A few weeks ago we were talking about bands we like and I ended up singing to her for a bit (in a fooling around way). She looked a bit embarrassed whilst I was singing, and walked away. I got a text off of her a few hours later of her saying 'I particularly enjoyed the singing ;)' so I think she liked it really.

A few days after this on the weekend i got a text off of her randomly saying 'wine and roses just came on the radio :)'. A bit random?

I only say that we may like each other, as I get these random texts from her every now and then, and also I do see her looking my way every now and then.

Could she like me? I think I may like her aswell!