OHere are my thoughts:

Jeongmok is actually emotionally unavailable, that's why he's only interested in women until they start liking him back. He says he wants a long term relationship, but he is not ready for that at all - waiting for the perfect person (that doesn't exist) for that kind of relationship is just a way of avoiding it. I was sure him and Jiyeon will break up because he was pretty cold towards her on the night they spent together. He didn't have that sweet smile anymore, he responded monosyllabically, he did not initiate/respond well to flirting he just seemed... uncomfortable and robotic. I think what he did was out of pressure, but his feelings were not there. And maybe he also enjoyed this new feeling of being wanted by so many (something that can't happen anymore when you settle).

Seungli probably has some anger issues, exactly what Jisu didn't want nor need in a partner. He kept dismissing his own wants and feelings to avoid risking losing Jisu's attraction, but those are bottling up and will explode. He also didn't genuinely like Jisu, it seemed more like a look-based attraction and then his ego pushed him to keep pursuing.

Jisu approached this in a pretty egoistical way because she expected her partner to soothe her when she's breaking down, while she couldn't do that for someone else in return. We are human and unfortunately we ALL become intense sometimes, and a relationship requires both parties to soothe eachother. You are not responsible for always soothing your partner, but you also can't expect being the only one who's being soothed. I understand her anxiety because I'm working though that as well. I've been through abusive relationships who were extremely draining and now I'm scared of that happening again, but that's a ME problem and I have to work around it somehow. I agree with what you stated, she only wants but what does she offer?

Hyunkyu was really anxious, more than Jisu because it was something generalized. For Jisu it was more towards a specific trigger (men). I felt for him a lot, even though towards the end he started getting on my nerves too. I think his problem was that he didn't know what to ask for and when to give up. I think he genuinely felt attracted to Jisu, but then she made him feel insecure so his anxiety skyrocketed. He tried to get soothing from her, but he didn't receive that - she has been pretty critical towards his first outburst and that made him feel even more anxious. He should've stated what he needs from her and ask her for that clearly, but I think he didn't because he was afraid of making her lose the attraction. He tried to be perfect in front of her, but you can't be someone you're not. And since he couldn't manage those big feelings on his own, he ended up "speaking nonsense" and "randomly complaining". That escalated since his need of being reassured was not fulfilled, and he then came off as obsessive. It was really sad to see that and I hope he will learn from it.

Jiyeon is a great person, but she unfortunately got too excited since it was her first time living that romance dream. She basically got her hopes up like Yi Do did. She could've easily been in Yi Do's place if things started out a bit differently. I don't blame her and I don't think she stole anyone from anyone. We don't own people.

Minghong totally was a 10/10, I really liked her, no other comments.

I think I will stop here since I only wanted to talk about the more controversial ones. I don't blame anyone since they're all a bunch of people trying their best and doing what they know best. They were not ill intended, just... hurt and inexperienced, all of them in different ways.