Not stalker, just smarter and with a better poker face (but also very honest, she has told him several times she likes him - but safely in the knowledge that he'd never believe her)
*snap* now this is the rare occurence for the elusive Takagi. The Takagi is flustered. It is very rare to see such an expression. And so, the Nishikata and the Takagi both go back to their homes in their natural habitat.