Ansuya:
https://mydramalist.com/24218-rak-kan-panlawan - She was bisexual but had dated women mostly and had stolen the ML's girlfriend earlier. This is a Thai drama though. It was quite entertaining.
I've seen this one i didn't get her sexuality or how she defined herself in it, she was a tom but she was bi yet when she liked the SL she said that maybe she never liked girls?
also she didn't steal his ex, he thought she stole his sister and his ex played both of them as a way to get him back
i actually enjoyed that drama though, it was different, fun and light