Thank you for telling me, will definitely try it when I read the next time 
I haven't seen anyone recommending 
A World Without You yet, it's about 
a bitter MC with terminal illness who tends to push people away including the only LI (you can choose the gender), I couldn't count how many times I cried while reading this tbh, though I might be biased 
because I personally know someone like this so 
There's also 
The Art of Falling in Love by the same author, which is about MC's parents (I haven't read it yet so I can't say if it's tearjerking as well or not)