Verena isn't really interested in socializing with others, as she tends to be reserved. Although Juni tries to change that, considering Verena as his "friend-crush" so he tends to hang out with her.. Verena doesn't really hate Juni, so she won't turn him down, but she does believe he's weird for interacting someone as "dull" as her.
Due to her blandness, it's odd to see anyone hang out with her, as much as Juni tries to.. Verena avoids being seen interacting with him. Afterall... What kind of popular guy talks to a "nobody?".. Not to mention, Osiris and Cary are supposed to be the well-knowned trio group with Juni.
(Arts are by me!!!)