Rocket Science Love summary:

I thought it was just platonic, spending the rest of our lives together as nothing more than friends… That was until Han Jei broke the news: “Seojin, I’m getting married.” Seojin, who was adopted to Germany when he was a child, has maintained a 15 year long relationship with Jei. When confronted with the prospect of Jei’s marriage, he realizes he’s in love with him. Working as a pilot, Seojin moves back to Korea in an attempt to run away, but his plan starts to unravel when Jei boards the flight to follow him. The two find themselves living together in Korea as Jei’s wedding date rapidly approaches. “Seojin, you’re not acting like this because of me, are you?”As Seojin tries to push Jei away due to his emerging desires and Jei wishes to rekindle their precious friendship, they spend more time with each other and the tension between them begins to arise…