Attachment in relationships, well has been misunderstood, it is not what it generally is thought of as being. When you say you are attached, there is an element of desire in the sense that their a certain demand at the psychological, practical level. It might also be an impression of awe over the other persons achievements and this too can cause an attachment. So attachment always has some desires attached to them therefore an attachment though valuable at a certain level, cannot be deeper than that which fuels it, the demand or desire. Attachment is in the domain of duality so is subject to the forces which are dualistic and plays accordingly. An attachment can be refined and it can be shallow depending upon the psychological makeup of the subject or the person. Duality operates at the level of cause and effect therefore remains limited but yet at that level can be used graciously by the one who understands the dynamics well and has gone beyond these dualistic tendencies into the depths of self and known the source of animation of these difficult to deal with personality traits which they remain until not transcended.
An attachment can be to things, to people, to concepts, to ideas, to habits etc and the common theme is that in all these and other cases attachment has an anchor thought, demand, desire etc which keep the subject engaged and unconscious of the perils of this level of entanglement. The only tool to break this unconscious entanglement is to become fully aware of its working mechanism and to see how it engages the reactor which is your mind and by this awareness alone their will be a release of that energy which was fuelling this phenomena and you will feel this release. But don’t mistake yourself into thinking that you have done it. This awareness which is a level higher than what you had earlier requires that you break all such unconscious patters by reminding yourself again and again to snap out of this self sabotaging loop of unconscious behaviour. You will have to be persistent, that is the only way.
When you are able to observe any emotion which has been happening unconsciously and has been keeping you in that state of entrapped existence, you will see that this awareness alone is enough to set you free but to keep free you must be more aware so that you don’t get trapped by a new pattern or mistake a more refined patter for pure awareness.