My girl friend jokes about us dating and I feel uncomfortable

ju

I’m a pansexual girl and my friend is a lesbian. She joked about us dating several times when we hanged out. She even told me we would be a cute couple together but I laughed it off. I didn’t think much about it at the time but afterwards I felt weird. I have no romantic feelings for her and I don’t know what to do in this situation. Please give me some suggestions. Thank you!