Tearjerkers

If you ship the main couple it's a sad ending as they separate. If you don't (like me), it's a mostly happy ending.

no one dies but it's an absolute tragedy anyway

the leads separate after the FL returns to her real body and the ML, believing her dead, fails to recognize her upon meeting her again 

FL dies

leads separate

FL dies

the leads get a happy ending but the drama is a tragedy (everyone else dies)

leads break up

the leads get a happy ending in the sequel movie but the drama is a tragedy

ML dies

the leads break up and go their separate ways

FL returns to the real world, ML remains in the novel

many characters die

there are two alternate endings, one tragic in which the ML dies, one happy in which he survives

one of the MLs dies, leads appear to be trapped in an endless time loop that will always end tragically

ML dies, FL ends up with the SML, so could be seen as bittersweet

both leads die

one of the MLs dies

the leads break up and go live separate lives

ML dies

FL returns to the heaven realm, leaving ML on earth

the leads separate and live different lives

ML never confesses and FL marries someone else in the end

there are two alternate endings - a sad one in which both leads die and the soul in the FL's body returns to present day alone, and a happy one in which the leads survive, and the soul returns and finds the ML's reincarnation in present day

happy ending for both couples but a very sad drama

the leads are separated by time (FL returns to the present, ML remains in the past)

FL dies

leads break up

one of the MLs dies

ML dies

both leads die

both leads die

ML dies

ML dies

FL sacrifices herself, bittersweet ending

one of the MLs dies

ML may or may not die, it's unclear and can be seen as open/hopeful or tragic

ML dies, bittersweet ending

FL dies

one of the MLs appears to die (may be open, it's unclear)

FL dies with ML only figuring out she was one he loved after her death

ML dies, FL appears to end up with SML in epilogue so could be seen as bittersweet

FL leaves the ML

ML's fate is open, can be seen as tragic or hopeful

FL dies and their child is taken away

ML appears to die (possibly open ending, it's unclear if he somehow survived or the other man just looks like him)

many characters die

the leads are separated by time (FL returns to the present, ML remains in the past)

SML who the FL loved dies, it's an open ending whether the FL ends up with the ML or not

ghost!ML finishes his business and vanishes

the leads are separated (FL returns to the real world, ML remains in the fictional) 

FL dies, bittersweet ending

both leads die (there is a loosely connected reincarnation sequel Forever and Ever)

Angel!ML returns to heaven, other ML appears to die in the final scene

bittersweet - FL doesn't end up with her first love and is separated from her second 

FL and one of the MLs die

FL dies

Ghost!ML vanishes

both leads die. true story so doomed by history.

FL becomes mentally ill and trapped in her life

ML is terminally ill, all three leads appear still as hopeless and lost at the end as at the beginning

FL dies (possibly ML as well, it's unclear). true story so doomed by history

ML is either dead or critically wounded at the end, it's unclear

ML dies

one of the MLs dies, other is terminally ill

both leads die

happy ending for the leads but a very tragic drama otherwise

the leads are separated by time (FL returns to the present, ML remains in the past)

FL returns to the real world, ML remains in the fictional one

ML dies

ML dies

FL dies, ML is prevented from adopting/raising her child who he was attached to

ML dies

FL and supporting characters die

both leads die

the leads are separated by time (FL returns to the present, ML remains in the past)

bittersweet/happy ending for the leads but very tragic drama

both MLs appear to die in the end

FL dies after much tragedy. true story so doomed by history

ML dies

the leads are separated (FL returns to her parallel world, ML remains in his)

leads separate

the leads are separated by time and space (FL returns to her parallel world, ML remains in his, both age at different rates)

one of the FLs dies

the leads are separated by timelines that run backwards from each other (FL dies in one part of the timeline)

ML dies

ML dies

both leads die

the leads exist in opposite moving timelines (early meetings for one are later for the other) and die in different times

ML dies, FL is left alone with their baby

the leads break up and separate

FL dies, more bittersweet than true tragedy

FL dies

leads separate (it appears one may die) 

FL dies

ML dies

FL dies

FL dies