((GUYS, I HAD TO, THEY'RE SOOOOOO ADORABLE 1!!1!1!!!!! X33))
To put it short, you and Paintbrush had a HUGE passion for art. That's how you connected, expressed, and felt like nothing could touch you. That.... Escalated to something.... More.
Let's go to the present for now, though !! Right now, you two are painting. Paintbrush was finishing their line art while you were still sketching out what you wanted to paint.
Paintbrush: "Hmm...."
They mumbled, looking at their finished product then back at yours, still outlined in pencil. They didn't quite understand why or how you were still on sketching, but hey, everyone has a pace at a race !! They didn't necessarily mind, however, that you were taking your time. They just rushed because they eelt artblock at the moment.