English is not my first language, so sorry for that.

Yesterday, I went to a nightclub with a group of friends. We were dancing and having some drinks until we decided to take a break in the backyard of the club. When we returned, only four of our group went back to the dance floor– my friend, a girl, a friend of hers (who happens to be a lesbian girl from my class , and I know this because she recently dated a friend of mine), and I. My friend and the other girl started dancing closely and eventually started to make out. Suddenly, the other girl(the lesbian)grabbed my hand and asked me to dance with her. We danced very closely for a while, but we didn't go beyond that – no kissing, just close physical contact. Later, when we returned to the backyard, the girl I danced with said that she was going to socialize and joined a group of girls to chat. Meanwhile, I stayed in the backyard with the rest of my friends until I decided to leave the club.I was tired.

My question is, does it mean anything that she invited me to dance? Should I reach out to her or try to approach her? Or is she not interested in me?