Hello Overthinker: Since this is your first post here on PC... welcome to PsychCentral. One other forum, here on PC, you may wish to check out would be the attachment disorders forum. Here's a link:

https://forums.psychcentral.com/attachment-disorders/

You may also find the healthy parenting forum to be of interest:

https://forums.psychcentral.com/healthy-parenting/

And then here are links to 10 articles, from PsychCentral's archives, that hopefully may be of some help:

How 3 "Attachment Styles" in Childhood Impact Your Couple Relationship? 1 of 2 | Neuroscience and Relationships

The Impact of Childhood "Attachment Styles" On Couple Relationships? 2 of 2 | Neuroscience and Relationships

What We Know From Studies of Intimacy and Attachment | Neuroscience and Relationships

https://blogs.psychcentral.com/imper...dium=popular17

https://psychcentral.com/lib/how-to-...achment-style/

https://psychcentral.com/blog/how-at...relationships/

https://blogs.psychcentral.com/imper...-style-change/

https://psychcentral.com/lib/dont-as...rase-the-past/

https://psychcentral.com/blog/8-heal...with-jealousy/

https://psychcentral.com/blog/how-to...nful-emotions/

I hope you find PC to be of benefit.