Situationships, a modern dating trend, are described as mentally exhausting due to their lack of clarity and defined commitment. Experts explain that the human brain seeks predictability in attachments, and prolonged uncertainty in these undefined relationships keeps the mind in a state of alert. This constant scanning for meaning and reassurance activates stress and reward circuits simultaneously, leading to mental preoccupation, restlessness, and emotional disorientation. The ambiguity prevents the brain from reaching a state of resolution, contributing to significant cognitive and emotional burdens.