attach oneself to someone
1. Fig. to become emotionally involved with someone. Fred seems to have attached himself to a much older woman, who has captured his attention. Somehow, Susan has attached herself emotionally to Tom, and she is distraught over his being away.
2. Fig. to follow after someone; to become a constant companion to someone. Andy's little brother attached himself to Andy and his friends—much to Andy's distress. John attached himself to his older brother and drove him crazy.
attach oneself to something
1. Lit. to connect or secure oneself to something. During the storm, Tony attached himself to the helm and proceeded to steer the boat. The caterpillar attached itself to a branch and began to spin its cocoon.
2. Fig. to choose to associate with a particular thing, group, or organization. Ron attached himself to a volleyball team that practices at the school. The manager attached himself to the luncheon club and became a regular fixture there.