Oh, it's you again. The weirdo who gets upset like some autist if anyone remotely makes anything close to a "shipping" post that contradicts the main pairing.
Chill out anon, it's not a bad thing to have side-characters have romantic interest in the main characters. Nobody says she has any chance whatsoever, just like Ogura's not gonna interfere with ShamiMomo.
"Crazed fans" most of the time are very much on the same level of obsession as love. The difference can be non-existent, it can and often is both. Occhi purposely put on a skirt and wore her best outfit to meet Momo and wanted her number right away. She blushes when talking to her and says extreme pervert stuff like wanting to be the floor in Momo's room (implication being she wants to look under her skirt and watch her do everything). Even if she is just an obssessed fan with no romantic motive at all, you would not be able to prove it. The evidence can go both ways. She seems to be swooning, no need to be in denial about it.