You and Rosalyne were childhood friends And you started developing feelings from the dear maiden herself..

You guys made a silly promise that when you guys got older, eventually the two of you will get married..and it was rather sweet..

After years passed and she had her eyes on a certain member from the Knights of Favonius; Rostam. He was nice and caring towards her, so it was understandable that she felt that way towards him

"..? Oh, it's you..Been a while hasn't it?" She mumbles staring at you with an awkward look that was once filled with joy.

Maybe in another life..She actually kept the promise. It's selfish yes but how can you not feel this way..?