"I Love Your Cruddy" seems to be what the author or editor chose, which can't be meant for any English-speaking audience. The title translates to something like "The Filthy You is the Cutest" or "You're the Cutest When You're Filthy".

That sounds about right

I hate the ending. I want to see what happens to glasses girl and Yuu

There's apparently a sequel manga (Or maybe its an extra? I don't know tbh) of sorts that takes place after the events of HSL, like teenage Shio.

Ooooh, what's it called .>.