"You're horrible. Making others feel bad about themselves, murdering a child, and destroying my brother. After me, you will find Mettaton, Sans and Asgore. But, if you cause them to kill themselves, I'd be all alone. Where's the fun in that?" -Mae, before committing suicide
Mae in this Route, like everyone else, committed suicide.
She was kind, optimistic and punny before Frisk came. After Frisk caused Papyrus to kill himself, she was mortified. She then proceeded to watch them, showing more observant behavior. After Monster Kid dies, she cannot take it. She runs to the CORE, and waits. She can be very patient, waiting. When they arrived, she talked to them, then killed herself, when realizing she'd be alone if she refused.
She looks exactly the same as her Undertale counterpart.