Gonna be honest here, Jasper and Leon relationship is as sour as a lemon. Both hate one another yet both need each other. Leon hates Jasper because he isn't willing to be honest with Lili and tell her the truth and Jasper hates Leon for the same reason! yet when Leon does tell Lili the truth Jasper hides from his own fears. Leon hates those who can't be honest with themselves and others. Leon knows it isn't his place to tell Lili Jasper secrets yet every moment he wants to shout it out.
Leon truly afraid to hurt Lili so he doesn't tell her yet he tries to encourage or at time threaten Jasper to march up to Lili and spill his guts. There dynamic is fun to play around with and it fun to see neither are willing to back down. Leon might have brute strength but Jasper is faster and more agile.
Lili is a human being who is rediscovering herself and for Jasper to try to reinvent himself during this time without even sharing the truth is frustrating to Leon. I do enjoy this combo haha I will definitely draw them more!