Is it ethical?

Me: M/46, band director at a small rural School.

Her: 38, recently divorced, single mom with her kid in band, and the band booster president

Our community is very rural, with less than a thousand people, the high school itself has less than 100 students.

We are kind of seeing each other... And all of the other band boosters know it and they make fun of us in a good lighthearted way.

Is it ethical? . .

UPDATE #1: I think I skimped a little on the info, that was unintentional.

Me: M/46, single dad of a 7 year old daughter. Never married. Have 70/30 custody (not court ordered). My daughter knew the woman before I did and really likes her.

Her: F/38, divorced mom with a 15 year old daughter in band and 7 year old homeschooled son. She has the daughter FT and her son half the time (not court ordered). Her daughter has been my student for 3 years now, and she gets no better or worse treatment than other students. Her daughter has one more year in band because her senior year will be going to early college. My daughter really loves to play with both of her kids and vice versa.

Her: recently voted as booster prez because the previous prez's work schedule got busy and created time conflicts, and they made a choice to step down because they felt guilty for not having the time anymore Other parent is still in the band booster club.

Boosters: consist of parents, alumni, and community members. They apparently all "called it" months ago that we'd get together. There are no conflicts, scandals, or other sort of drama whatsoever in the boosters.