Novels where the ML suffered a lot, but got a new happy ending.

I just wanted to create a list for my loves that ended up losing their loved ones or had a sad life before. 

Here we have:

MLs who lost their lovers, but lucky they found them again.

MLs who had unrequited love in the past life but got a new chance in this life.

MLs that none of the family members or people around liked them.

MLs who suffered for any other reason.

It’s a mix of Josei, shoujo, shounen-ai and yaoi.  All have Happy Ending.