The reasonI said the ML was uncomfortablewas because he used the FL by taking advantage of her amnesia to lure out an enemy (she was his lover) and he pretended to be her husband. Mind you he kept a reasonable distance from her but eventually have birth to thoughts he shouldn't have. He went from, he will use her then get rid of her after he catches his enemy, to he will let her live decently after he's done usuing her, to he will keep her as his mistress in the outhouse (while he does marry a legitimate wife - his cousin to whom he was engaged with), to marrying her as a concubine (this is after she gets to know she's been decieved by him for long as leaves his ass), to finally marry her legitimately as his only one. He is a very stubborn, dedicated and hard working man, so since he came to conclusion himself he doesn't ever regret it and works towards doing what he has decided on, both in his love life and his career.

Similarly, the FL is a resolute and strong woman, she does what she has decided on, whether it being a supportive wife who shoulders her family or be a leader who shoulders her subordinates (didnt get to see much of that but well). She's also strong in the sense of mentality, she resolutely leaves the ML after finding about how she was decieved and his future plans for her even when she loves him. She knows that if he lets her down, she won't be able to deceieve herself to love him and continue loving him and thus she would separate with her dignity intact (like she did with her ex :P). I really enjoyed both their chracters as they aren't your usual transmigrator or regressor but just individuals with their own ideals. So, when the FL and ML were being lovely dovey with each other initially, it was uncomfortable not knowing how they would each react after fhe paper window was finally pierced. And when it finally was, I wasn't let down, and so when they put their differences aside and got together again, it was refreshing and I couldn't love their relationship more.