Between Sirens and Mermaids

Fate doesn't seem to like him. There's always something coming along to ruin any sense of happiness he might have. So what if his cool senior appears to like him, it will never go anywhere because Team doesn't deserve happiness for some strange reason.

or

Win knows that his adorable junior/boyfriend has a sad past and Win will do everything he can think of to make his grumpy little kitten happy and content.