High scorers value quality, one-on-one, uninterrupted time with their loved one. The two key terms here are "quality" and "one-on-one". Quality means actually being present for the other person — not just watching tv or being in the room together. And one-on-one means having privacy together — not just hanging out with a group of mutual friends. This kind of quality time can manifest as talking about your day with each other, traveling together, or going for a walk together.
These people value things like good listening, a phone call when you haven't physically seen each other in a while, and sharing experiences together.
Some people mistakingly confuse quality time with quantity of time. High scorers do not necessarily desire an abundance of their lover's time—though they might—but rather a certain degree of attention and presence from their partner that makes them feel loved, understood, and heard.