AITA for being uncomfortable with the attention my husband is getting from my family

I'm in my early 40s and married to my husband, who is in his mid-40s. We have two children, a 6-year-old and a 4-year-old. We live in a tight-knit neighborhood where everyone knows each other.

Recently, a new neighbor moved in next door, we'll call her "Samantha." Samantha is also my second cousin and in her late 20s. She's always been friendly to me and my husband, but I've noticed her flirting with both of us a few times.

It was innocent at first, but it's started to make me uncomfortable. My husband seems to enjoy the attention, which makes me feel even worse. I've tried to ignore it, but it's becoming more frequent and obvious.

I haven't told my husband how I feel yet because I don't want to start a fight or make things awkward between us and Samantha. I also don't want to ruin our relationship with her, as she's family and a neighbor we'll be seeing frequently.

Am I the asshole for feeling uncomfortable with Samantha's flirting and not telling my husband about it? Should I confront Samantha about it or just try to ignore it? I don't want to cause any drama, but I also don't want to feel this way in my own home.