I don’t understand what so wrong about not wanting to date?How did she hurt haesol and t...

Because she knew that they wanted serious relationships from the start. She said it herself in 110. She knew what they wanted but liked the love and attention they gave her so she continued hooking up with them without addressing her true intentions about not wanting to date them. It's not too hard to understand from the context itself. She's a pretty selfish person.

I believe she already address it to them many times she even cut them off cuz of it and the black haird girl knew she doesn’t want relationship but she kept so hard to make duna likes her which and bringing haesol along with her to make some plans which was so annoying but eventually when they stopped meeting each other she started being a bitch about it and not accepting the rejection

Agreed. But she did that too late. That's the point. She knew from the start so she should've not gotten with them at all if she thought they'd catch feelings. She admitted that she knew their intentions and liked the feeling of love and enjoyed it for a bit until it got uncomfortable. Then she immediately brought up that she doesn't want a relationship because she's scared and blah blah. Along that same thought, she also kind of manipulated them into that unwilling threesome. They both were childishly competing but if Duna knew that were doing it because they expected a relationship from her, she should've stopped immediately and talked to both of them about it, that no matter how much they fight, she won't date either of them but she went too far, forcing Haesol to get intimate with Gyerin, a whole lesbian and hurting Gyerin more, I believe. Haesol was also and unwilling participant in that threesome since he liked Duna and was uncomfortable with Gyerin. She didn't communicate properly and suffered for it. I get your point but she should've been more responsible and less emotion driven with her subs if she didn't want emotion to be involved at all.

Part of what you said is true but I disagree on forcing them to have sex cuz she told them if they’re not welling to do it they should leave and they did it anyways if this considered force then anybody could do the same and act as a victim and call it force. What she did to minho was force and bad but she did NOT force haesol and the black haired girl to have sex

I don't know... consent under pressure is kinda forced. That and she pushed Haesol over Gyerin on the couch when he specifically didn't want to. That's what I took from the scene. Let's agree to disagree. I do understand and respect your point though.

She could’ve leave anytime if she didn’t want it instead she shoved haesols face in her v gg while enjoying it, She didn’t even mentioned that she was forced how did you get to that conclusion??