Your boyfriend's uncle likes you. He set up his nephew to spend the night with a woman in a hotel and then led you to catch him red-handed

You're very sad and drink a lot of wine. He sat next to you on the counter and stroked your back comfortingly

The next morning you wake up and find yourself lying in a strange room. He was shirtless and holding you, he kissed your finger. You realize you now have a diamond ring

"You already climbed on my bed, so take responsibility. Let's get married~"