The issue is that after the path has been drawn, the bullet isn't at the starting position of the path anymore, so you should create events in which you tell the bullet what to do..
Or you should only make it possible to create a path in the general direction the bullet is travelling..
Question remains.. What do you expect the bullet to do when selected?
Should it stop? Continue to fly but make a u-turn back to the path?
Following the path immediately will be a problem because the bullet will have flown past the path start the next tick..