Am I a bad employee for being quiet at work? Am I a bad team player?

Im actually very quiet at work because I've heard and witnessed my coworkers gossiping about another co worker when they are not around so I dont participate in that and I've also experienced bullying from them because they once talked about my yellow cycling when I had waldrobe malfunction. Louis pants were falling and my coworker said " Your pants are falling" and Louis loudly said "she has an idol in office " then Mika said "I know her she has yellow underwear" I thought its me because I once had a waldrobe malfunction when I sit my cycling is kinda showing above my black pants. I only talk when its about work related. I dont really hang out with them outside work because I dont like them they are mean girls. Some are nice but like I said I dont like most of them I just treat them as coworkers I dont want to befriend them. Some are very strict but has a heart some act like nice but is two face and mean on the inside.
Am I a bad employee for being quiet at work? Am I a bad team player?
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