Honestly it's understandable In Lyle's side, he's been through a lot since Childhood, he was never been spoiled nor treated preciously, it's new to him the way Ash spoils him, there's just a wrong guests who doesnt have any respect to the current lover.
Idk how lyle is keeping quiet abt it...I'd have confronted immediately or beat the shit outta him coz that's really unfair on lyle's side