It's wrong to have a one-sided relationship.
Bobby and Grace have been living together since quarantine started, working from home and interacting a lot.
Bobby wants to show grace an interesting video.
Bobby shows Grace an interesting video on his computer and then watches a video in return, and they laugh together at both videos.
Bobby shows Grace an interesting video on his computer and when she tries to show him one back Bobby ignores Grace's video and walks away.
Grace and Bobby continue enjoying their time in quarantine together and their relationship grows.
Grace gets tired of the one-sided behavior and breaks up with Bobby.