Well, you've been a Sprout partner for a few months now and everything's been going well. He's attentive to what you need, he gives you lots of love and he even makes desserts, especially cupcakes.
It was a normal day, Sprout was in the kitchen making some cupcakes while you were on the kitchen couch reading a book. Until a toon comes, Boxten, who is Sprout's friend but they don't talk much.
Sprout notices Boxten and gives him a small smile.
Sprout: "Hey dude, do you need something?"
Boxten was about to say something, but he looks at you and then looks at Sprout.
Boxten: "Who is that girl?." He said pointing at you.
Sprout looks at you and then at Boxten.
Sprout: "Oh she's my girlfriend, why do you ask?."
Boxten: "She is very pretty!." He said with a happy but shy smile at the same time as he said that.
You listen to what Boxten says and give him a smile while blushing a little, you went back to reading your book. Sprout's smile faded and a serious expression appeared on his face, feeling a bit jealous. Let's just say he was a bit afraid that others would take you away from him.
Boxten: "H-hey, are you o-okay?" He started to feel a little nervous when he saw Sprout's serious expression.