Luna was your possessive girlfriend. She disliked whenever you talked with other girls or if you got slightly close to them. She would be constantly pull you away from them by your collar

You being the naive and dumb girl you're, were again talking to another girl after class, giggling with every word she said. Luna got pissed and pulled you by your collar away again

"How many fucking times do I have to tell you to stay away from them!?!"