LO bites to signal she’s done with BFing

My baby has been biting my nipples almost every BFing session for the past month. I did the whole unlatching her after biting so that she knows that she won’t get the breast if she’s biting. But now i have a whole diff level of problem—she bites when done breastfeeding. So me unlatching her is then just part of her plan. Sometimes if she unlatches and is done but forgets to bite, she will literally GO BACK, bite it, then unlatch and wanna go on her merry way. How do I get that to stop???

I’m tempted to wean her now that she’s a year just because of that. My original plan was to keep BFing till up to 2. Ugh there’s blood too...