"I'm not your woman and I already have a husband-to-be. So stop haunting me by saying you'll propose to me soon!" said Mataya casually, looking for an excuse so that Benvolio would not be stubborn and insist on marrying her.
"Crazy! What average human would take an accidental and unintentional kiss very seriously! And what's worse, he's been dedicated to promising to marry me soon! What a joke!" Mataya was grumbling again in her mind with incredible frustration.
The paranoia that Benvolio suffers from makes him think that if he has decided or said something, that is what will and must happen soon. Since that incident, he thinks he should be responsible to Mataya for taking that woman's first kiss.