I think she did like you, and may still have feelings but feels afraid to show them for some reason. Maybe she didn't make the connection with you and dating officially, and it shocked her. Also, if you reacted in a bad way to the joke, that is an instant sign to her. Definitely keep talking to her, unless she says not to. When you feel it is right, touch her again (not immidiately holding hands, but a light touch on the arm/shoulder should do the trick)
Good luck!!!
