
This is fiction that's why . Those men who political slept with their seniors to gain power are right? There many examples out there . Where the men is already dating company owner daughter but the father is strict with the men wouldn't let him promote easily so those men slept with senior authorities to get opportunities. Even though they loved their current partner. Those type should be forgiven? . What if fl in her new life would choose ml as her only business partner . Would the ml wouldn't do the same? Or if fl becomes useless?
If this is a fictional story . Then the emperor from empress remarriage manhua should be forgiven too? There are many shitty ml . then you should forgive them too

And dear trust me stay away from such men who can sleep with anyone. If you learn to forgive such people in the world of fiction, then gradually you will start doing the same in real life also. Such a person initially loves the other person a lot, but then slowly the love starts decreasing or they stay together for a long time, then they start cheating. Future life is not shown in fictional stories, otherwise after a long time such ML become scumbag .

I think Syl was somehow saved by the ML the moment he stepped in to steal his position. I somehow glad he did.
I cannot understand the meaning behind comparing real life issues with stories, but because real life issues usually have more complex situations than these fictional stories.
Sorry I cannot relate with your situation, but better than saying "don't be with people that do this", it is better to say that you should find somebody who is trustworthy, somebody who really fits your morals. Even if you consider this "bad behaviour", there are some people that do not mind.
It is just my opinion of course, buy you have here quite the nice topic of conversation (づ ̄ ³ ̄)づ
Be happy and hugs for everyone
I thought ML was just flirting with Rosie and maybe he had no physical relationship with her. But I was wrong.
For me this is the end . I don't believe in such ML . I had a friend with almost similar situation where he has to be with someone due to some situation. He himself told me as a men . That if a men can have a sexual relationship with a women whom he hate or loath then they are not trustworthy or loyal at all.
And please this is my personal opinion don't harass me over this .