
Anyone know where to read the novel?

Took me some time to find this as the title was somewhat different but here:
https://danmeinovel.com/manga/misplaced-relationship/

Everything was cute except the damn sister in law. Wtf was wrong with her, having one night stand with a middle school kid while dating his brother?? She's fucked up. I'm sad that seme lost his first time to her. Seme was too nice to let her into the family. I'm glad he found his happy ending with uke.

The reason why seme has to marry is because to protect uke. Seme father is a jerk that threatened him and seme has to marry to someone of higher position than his father to protect uke. The marriage is a contract marriage without love, so nothing happened.
Seme did not realized he loves uke till uke changed his number and avoided him after his marriage. The only friend he has is uke so he thought what he was feeling was friendship. Once the contract was overall, seme went to find uke.
He followed uke to the trip to let uke know his feelings. During the separation, seme regularly contacted uke's friend to ask about uke.
They both have a lot miscommunication. Both uke and seme suffered a lot from those few years but uke the most. Anyway, it ended nicely with everything being sorted out.

I want a happy ending for them. I want Pado to suffer but i do not know what happened. It's too early for me to conclude things.
But there is one thing I do not like, is that when seme slept with someone else especially other gender when they are in love with the uke. I know they are not together, but it triggers me when Pado imagined Haeil while having sex with someone. (╯°Д °)╯╧╧
In the raw, he said "Annyeong , Serena" which means "Hello, Serene"...
Well, they translate 'he' instead of 'she', so...
true. I don't read much the translations coz they're not accurate, like there's no longer good translations for manhwas nowadays. So I wait for the official to read what they're talking about. I can read Hangul but I don't understand some of it.