My all-purpose approach to these types of emotions is.. compassionate abiding. I simply "cradle" the thought or emotion in my mind & breathe into it. I may smile to it. And sometimes I may even place my hand over my heart as a sign of compassion for it. I then allow the emotion or thought to fade at it's own pace.

Also, however, here's a link to an article from PsychCentral's archives on the subject of "anxious attachment" which I found in the process of replying to another member's post a few minutes ago. Perhaps there might be something in it that will be of interest:

https://psychcentral.com/blog/archiv...-relationship/