Dylan was motivated by Marceline. Because of her meaningful advice, he managed to control his rage. He realized that he needed to persevere and be patient if he truly wanted to win Lyca's heart.
If she liked somebody right now, he should do his best to show her that he was the guy who was meant to be with her. They were mates! No one would break that bond so Dylan would never give up.
"Thank you, Marceline. You give me hope." Dylan gleamed with joy, still smiling at Marceline.
"Does it mean you like me for your friend? Not your cousin?" Dylan asked her expectantly. His eyes were fixed on Marceline, anticipating her reply.
"Well, if my cousin didn't break her heart before then maybe I would choose him over you," she frankly said, making Dylan speechless once more.
"But don't worry. I will not side with either of the two of you. At the end of the day, it is still Lyca who will choose between you and my cousin."