After Our Divorce, I Still Wore Your Jacket Edit: can’t believe I forgot this one Scum Villain’s Self-Saving System
https://www.novelupdates.com/series/transmigrating-into-the-reborn-male-leads-ex-boyfriend/ They break up but it's one sided. https://www.novelupdates.com/series/youve-got-mail-a-cautionary-tale/ The MC runs away from ML. They get back together in the end
I think this will fit for you but be prepared for the angst. https://www.novelupdates.com/series/yu-wu/
Every Day the Protagonist Wants to Capture Me Spoiler MC got (purposely) trapped in a different realm for 10 years (I think) and ML got to watch it happen edit: completely forgot about Transmigrating into a Mob Character to Rehabilitate the Villain Plan
Professional Body Double Agreement for being gay for 30 days No money to divorce My wife always thought I didn’t love him Addicted book two (translated one is on Rosyspell) - you need to read Addicted first My accidental love is you (Thai BL) - they got separated but reunited again towards the end. https://nastriumden.blogspot.com/p/my-accidental-love-is-you.html
In The Name Of Fang Fierce Silk Flower The Bird and the Golden Cage Those Years In Quest Of Honour Mine (they were like together but not) Global University Entrance Examination Today, the Foolish Scum Gong Screwed Me Over Again Record of the Missing Sect Master Bringing Along a Ball and Hiding from Foreign Devils The Useless Mr. Zhuang Poison of the Human Panacea (if MC/ML dying counts) Nan Chan Lantern: Reflection of the Peach Blossoms
A Filthy Rich Hamster in the Apocalypse Laws of the Other World Your Distance 15P 7H 6SM Agreement if Being Gay For 30 Days Picked up a Strange Knight & Brought My Wife Back from Another World I Ran Away after I was Forced into a Love Polygon How to Deal With a Tsundere Gong How Many Steps Does It Take To Turn an SM R*pe Novella into a Comedy Skit Reborn into a Hamster for 233 Days Today, the Foolish Scum Gong Screwed Me Over Again Gaze at the Scenes of Debauchery - long break but they dont exactly get together The Decade of Deep Love - ^^ the same How to Survive As a Villain Transmigrating Into The Heartthrob’s Cannon Fodder Childhood Friend (either they are reunited childhood friends, broke up and came back together, separated because of misunderstandings, separated because they went in different worlds)