
Some details are fuzzy since I’m doing this from memory so certain things might not be exactly right. But this will give you a close idea of how it works out.
From what I read, he becomes obsessed after they sleep together, and they are constantly sleeping together after that at every chance they get. But for some reason he won’t admit that he loves her. So basically he acts like they are lovers but won’t label it as such. When she confronts him, asking if he loves her, he doesn’t give her an answer. He doesn’t really know what it’s like to be in love so he can’t say that he loves her but knows that he likes her at the very least. She obviously doesn’t like that he can’t clearly say his feelings. Something happens where they become separated (I think he goes off to war or something), and in that time, she dates a bunch of people, but only for like a week or two max before anything physical happens. At some point, can’t remember if it’s before or after he leaves for the war, he realizes he never loved that other girl he was hung up on in the first few chapters. It was more like admiration. Anyway, He keeps tabs on all the FL’s activities and receives updates. He doesn’t interfere with any of it though. I can’t remember what comes after this but I think since it’s a romance webtoon it would be fair to assume that when he comes back from war (or wherever it is he went), he does his best to win her over and eventually wins.

i think before he goes to war. jasmine heard him talking with the crown princess like CP said hes gonna marry her then he replied "hell no" after that jasmine ran away then he tried to catch the girl but eventually he needs to go to a war.. even though he is the war he keeps a spy to jasmine then every he got news about jasmine dating a bunch of guys he goes wild and he take out to the enemies, the war supposedly takes 2 years it only takes 6months bcuz of his tantrum over jasmine.

i think before he goes to war. jasmine heard him talking with the crown princess like CP said hes gonna marry her then he replied "hell no" after that jasmine ran away then he tried to catch the girl but eventually he needs to go to a war.. even though he is the war he keeps a spy to spy jasmine then every he got news about jasmine dating a bunch of guys he goes wild and he take out to the enemies, the war supposedly takes 2 years it only takes 6months bcuz of his tantrum over jasmine.
Having read the spoilers, we’re probably in for a long ride ( ̄へ ̄)