Yuri on ice. Please explain why Victor kissed Yuri I don't ship, me and yurio is 'bout to ram his as up. Oh and free points for y'all <3

So victor and yuri are gay even though they never specifically said that. They live in a non-homophobic world and it is well known that they love each other. When he kisses yuri, victor says “ this is the only way I could think of to surprise you more than you surprised me.” So going off that he probably kissed him because he was so proud of him and has probably wanted to for awhile.
Anyway I hope that makes sense and answered your question.

Based on what was seen on the opening page of the chapter, answer in your notebook what relationship exists between the current i didn't see the qustion.