Work Advice

So my mom works at Costco and so do I... Sunday when I was leaving costco there's this girl that works at the Verizon stand and one of the costco employee was talking to her so when she left " I was like stop flirting" in a joking away and then I was like " all the guys at Costco flrit with her " but I said it in playful way so yesterday HE TOLD my mom what i said . And today she was mad at me saying that I cause drama and that I sounded jealous of her ! Omg i got so mad at him . This happens ALL the time. EVERYTHING I do or say they tell my mom.