Attachment and emotional dependence are very different things
You can make emotional dependance less powerful by a) dilution... having lots of lesser emotional relationships
b)avoidance by detaching yourself from that aspect of life... not making the relationships in the first place
c) Personal growth If you work on all aspects of personal growth you may find that you are able to deal with things like separations and things far better
d) Get a dog so it will love you back the same way