(Bl) Reborn as a Good Child

The family found out about YiHan's depression and love/dependency for ML. So, ML and the sis "broke up" so YiHan "can have" ML.

ML phrased it to MC as the engagement being a way for Sis to find out if some guy was really into her. MC's other family members think that ML was just sacrificing himself for MC. In the end, the guy they were "testing out" (actually proven to be in love with MC's Sis the whole time even in the past life) saved the Sis from being hit by a car and confessed. The two then end up together. 

Hello! I'm new to MTLing but was trying to do it for this novel and was wondering how you did it??? I've scoured reddit and NU pages but am still pretty confused.. thx! 

Can you guys tell me what happened after BaiYihan's sister ask the ML to marry her? (She was really persistent) How did they end up not getting married? Also How MC and ML able to talk to each other about their feelings?
<<I was crying the whole time ML and MC's sister are getting married in ch 29  it really broke my heart when i saw MC running away to the balcony>> "he couldn't handle it" 

The rebirth starts at ch 1 but MC (being the traumatized human that he is) keeps having flashbacks. Also, the author's writing style is a little...bad when reading in individual chapters. On a whole, the story's good but it's so hard to go through the chapters without bingeing. A proper end to when MC stops thinking about his past life would be when he had to deal with...actually, never. He never stops thinking about the past because the author would throw in a few lines once in a while or a character would drag up stuff from the past. 

https://www.danmei.la/book/12/12719/ 

Thanks for the spoilers. I'm on ch24 and not sure if I should keep reading or not because it looks like a big mess up ahead. There too many things going on. Novels with too many elements is not really my kinda thing :/ 

which extra does the ml come back to find out that mc is dead? 

THERE IS NO FLUFF!!!  THIS IS A HUGE PIT!!!!!
I went to MTL thinking of reading sweet novel.....now my heart aches SOOOO bad!! Sobbing won't stop ah...