Getting too attached & other issues

Hi everyone. This is my first post - apologies in advance if it's a little long. I am 25 years old and I was adopted at the age of 10 months; I have always known, and I grew up in a loving home with great parents & family. I never really thought I had any "issues" relating to the adoption. It's not until recently I've discovered that, hey, I'm actually not alone in my deep rooted fear of rejection, and attachment issues...! So this is something I'm still just getting my head around. I recently read a book that contained the following quotes: I believe that I looked for my mother in every woman I have ever known Ӗ teachers, friends, counsellors.

ԓThe sense of loneliness and disconnectedness is so deep in most adoptees that they feel they can never get close enough to others.

This is what I have been experiencing my whole life, in a way. Except for the weird part (well maybe it's not that weird, but we'll soon see ;)) Before I read about adoptee issues, attachment etc, I recognised that I, more than anyone else I knew, got very attached to certain figures in my life. During high school, they were teachers - both male, but one in particular who was a really supportive, nurturing figure in my life, someone who helped me through some tough times and who I really opened up to. There was just an overwhelming feeling of safety with this person. More recently, my manager in my last job, who I was with for about a year. I was going through some emotional problems and ended up confiding in him quite a bit - over several months, I became very emotionally attached to him, on the one hand constantly being afraid that I was "too much" and going to drive him away, and on the other again just feeling incredibly safe & looked after. I consciously tried to be physically near him at work (not in a creepy way, I know that sounds like I'm a stalker!) - like just having him in my line of vision made me feel better. When I was moved out of his team, I was devastated, probably more than I should have been. I wrote in my journal: "Rejected, again." Which sounds silly but is really how I felt. I wonder if any of these issues are associated with adoption? And if so why, when most of my thoughts growing up have been of my birth mother, that the people I have been mostly drawn to are men? I just wondered if anyone had any similar experiences or thoughts as I have been convinced for such a long time that it was just me being an oddball. ;) Thanks for reading.