The quantum physics dating scene is brutal! This perfectly illustrates the famous quantum measurement problem - when you observe a quantum system, it collapses into just one definite state (the girl in red), while all other possible states (the angry blue-dressed copies) become inaccessible. The poor observer dude is experiencing firsthand why physicists get headaches - he chose to measure one quantum state, and now all the alternate realities are giving him the death stare. Schrödinger's relationship status: it's complicated.
In quantum mechanics, particles exist in superpositions of multiple states simultaneously until measured - kinda like how this guy probably wishes he could date multiple versions of reality, but instead collapsed his romantic wavefunction into a single, apparently regrettable choice!