Complex sentence: A defender of the common kid, he seems to have an implied crush on Spinelli, though this is only barely hinted at; in "The Experiment", scientific curiosity causes him and Spinelli to share a first kiss.
Split into simpler sentences: A defender of the common kid, he seems to have an implied crush on Spinelli, though this is only barely hinted at. In "The Experiment" scientific curiosity causes he and Spinelli to share a first kiss.