affection & devotion - attachment & addiction

when do we slide from one to another?

the definition for attachment is:
1) a means of securing or fastening
2) affection or regard (for); devotion (to) - as in attachment to a person or to a cause

the definition for addiction is:

1) the condition of being dependent on or compulsive about something or someone

2) being inclined or devoted in the extreme

would you rather be committed or devoted?

would you rather have another committed or devoted to you?