Now here are few sentences which you can use to your boyfriend/girlfriend. Good thing if your bf/gf is a Korean (they can get the message) but can cause NOSEBLEED to other nationality.bwahahaha.
1. It was love at first sight. Urin so-ro chon-nu-ne banhae-sso-yo
2. Will you be my girlfriend? Nae yo-ja chin-guga do-e-o-jul-lae?
3. Will you be my boyfriend? Nae namjachin-guga do-e-o-jul-lae?
4. Would like to go out with me? Narang sagwi-llae-yo?
5. I love you Sarang hanminida.
6. I am crazy about you. Dangsinege banhaet-ssum-nida
7. We are a match made in heaven. Urin chon-saeng-yon-buniya
8. We split up. Uri he-yo-jyo-sso
9. Will you marry me? Jo-rang gyo-ronae juseyo?
10. He broke up with me. Nan-nun gu-ege cha-yot-sso-yo