Hey I am looking for some manga recommendations (Preferably webtoons, but I am fine with anything) with an obsessive/possessive male lead.

Now comes the important part: I want the male lead to get obsessive over time and not instant.

All the manga that come to my mind with an obsessive ML, he almost every time gets obsessed with barely anything(Like her looks for an example). I want them to spend time, talk with each other, maybe even hate the other person.
And really important: Without a time skip!
I don't want the sh*tty excuse of "ugh, he gets obsessed with her over time, it just happens within the time skip". No. I want to SEE it.

Female Lead shouldn't be weak or stupid.
It would be great if possessiveness and jealousy of the ML would get to a point where it is kind of concerning, not cute, but I'd also take the cute kind! The ML should fall in love first
No Smut

The only manhwa I can think of is Olgami/Trapped.
And that one is great.

I listed a few options below. In most of them the ML is indifferent/hates the FL in the beginning. Then it takes a while before the ML notices that they are becoming obsessed/controlling (often they still don't recognize it as romantic for a while even after realizing they are possessive)

manga - An Observation Record of my Fiancée - A Self-Proclaimed Villainess
ML starts out indifferent but by the end he is obsessed.
It is a shoujo but told from the POV of the ML. So you can see the obsession as it forms from his perspective.

Manhwa
Caught by the Villain
shoujo, cross-dressing FL. ML starts just wanting FL skill (thinking she is a boy), It takes him a while to become 'romantically' obsessive (not wanting others around the FL) and even longer for him to realize he is attracted to her.

Manhua
The Villainess Refuses to Court the Male Lead
ML goes from Hate -> hate possessive (Only I can kill her sort mentality) -> I haven't kept up with it so I don't know when or how it becomes romantic

Thank you so much for the recommendations!