Sis, idk who this person is but block them.
Everyone is different, ive seen you flirt a lot on here, while you were single and since you are with your fiancé, its who you are ,as long as you dont cross barriers and that she doesn't have an issue with it ... you be you and you do you.
Personally,when im in a relationship, i dont flirt around, because i wouldnt want my partner doing so as well, as my insecurities are too severe and so is my jealousy. It happened before that i had a gf that flirted with many here and it ended our relationship because i couldn't take it and she was a flirt and nothing coukd chance that.
So,as I said,everyone is different, so you keep doing you,as long as it doesnt hurt your relationship sis.
💜🤗