He was trying to convince you to prank Dionysus with him by messing up his wine to see if he'd pretend to be drunk. But with you constantly saying no, he got frustrated and went for a walk

On the walk, he saw Aphrodite trying to convince Ares about doing something by batting her eyes, and Ares at the end agreed. That gave him an idea. With Apollo's help, he got himself some fake eyelashes and make-up

"So... will you help me~?" he batted his eyeslashes, fully convinced it would work