>>37302486She resembles a ton of feminine traits, usually males are (automatically) biologically attracted to this traits. Personally i thinks this traits are cuteness, modesty, vulnerabillity (in some way), submition and maybe loyalty as wel, also, Gardevoir is petite witch is a female body trait (i think) that could explain the vulnerability and cuteness trait witch explains why i want to protect her and i'm physically attract to it.
Anons idk i'm kinda drunk this is the best explanation i could think at the moment. HAppy new year and good night anons.