Too touchy to MY husband

My husband and I went out with friends last night. His friends cousin was there and was so flirty with my husband. Shoulder touching, arm touching, doing a cheers with him, always laughing and pointing out stuff he's doing. At one point my husband had too much to drink and was getting up from his seat, she tried to help him and I stepped in and said, "no I have him." I want to brush it off because everyone was drinking (I wasn't). And luckily my husband NEVER encouraged more. He would just laugh because that's how he is when he's drunk. But to be honest I hated how she kept trying to physically touch him. I eventually had enough of it, and made him sit away from her and told him to keep his distance. He was chill about it. But that's my husbands friends-cousin. And his friend and cousin are ALWAYS together. I realize she is like this without alcohol, just in a less invasive way.