As the title say, gimme your best love novel, more tragic and sad story the best it become. Examples I Want to Eat Your Pancreas Mulberry Song One Night, One Day, One Year, One Lifetime A Game To Make Him Fall The Probability I Can Kill My Wife Without Being Found Out
Semi Datte Tensei Sureba Ryuu Ni Naru The Bird of Good & Evil By The River of Forgetfulness for Seven Lifetimes Invisible Dragon How Hurtful of the Maple Leaves Three Lifetimes of Trials; A Wind Chime Brings Tears Mum, I Used to Hate You I love this world (on RoyalRoadl) My Hero Three Day's of Happiness
My best is Sansheng Wangchuan Wu Shang. Aside from what you've mentioned, these made me cry too: My fiance is in love with my sister the wolf lord's lady
Novels with the drama, tragedy and horror(bc I got scared) genre make me cry. And also those that has a bad ending. My tears are easy to fall. I don't even know if it will make you cry. I think I cried a lot on Seven Lifetimes and Sansheng Wangchuan. Forgot others but I think others have recommended some novels that I forgot. Some romance novels add drama that make you cry. Cliche things like sickness and fake death.
Any original and fiction from webnovel.com, it's so sad when I think about how many wish fullfilment chunni's are out there.
Doesn't have the romantic tragedy angle but I'm recommending it anyway because it's that good. It's also a one shot novel so you have a complete story. Iris on Rainy Days