Older woman flirting with my husband and touching him

I don't know if it should be upset or just laugh it off but now I feel disrespected.

My neighbor who is 68 yrs old be flirting with my husband. He says she says nasty disrespectful things when i'm not around and it's starting to make him uncomfortable,things like how she would please him if she was 30 yrs younger,how she shave her 🙀etc he says every time he's cutting the grass she walks up and says these things.

So I thought he was over reacting because all I see is a sweet lady and i've never saw that side of her,every time I'm around she just speak and smile but I do notice she flirts with my other neighbor b/f also.

So this morning i'm out for work because i'm sick and decided to sit at the window and watch my hubby wash the car when guess who walked up? Yes my older neighbor the first thing she says is heyyy baby I love you as if she was imitating me ,than I couldn't believe what i saw next this old chick touched my husband butt and said she love younger men and later to come hang with her in her pool and she will be wearing a thong 😱😱when I got up and came outside he was going off on her telling her to leave him alone and he's going to tell me how she touch him inappropriately.

She couldn't believe I walked outside. I told her to leave my husband alone and not to play like that😡and she just walked away saying I don't have a sense of humor and never apologized.

I told my husband he should have told me about the touching part because that's really going to far.

I'm sorry i'm upset but my aunt is 65 and her boyfriend is 40 so I know a lot of women who like younger men and will gladly have sex with him.

I feel disrespected by her and told her to never speak to us again.

Do you think I over reacted???? because i'm really MAD.

Sorry for long post

Edit. No there is nothing wrong with her ,her daughter says she's a freak lol i see now and Ima nurse I know they signs. And she's not lonely she have a bf and she is old enough to know better