I know how you feel,
@Fadeaway. I saw my first therapist for 2 years and while he was a good therapist while I was seeing him, he kicked me out. I have very strong abandonment issues too and it hit me very, very hard. Ironically, today, five years on, I found myself going through a really tough time, so emotional and hating on myself so much I was trying to make myself vomit... and I suddenly realised, I'm still not over that moment! I'm still not over being kicked out.
I, however, too, get why he did it. I had serious transference issues and saw him as a 'father figure', which caused intense anxiety within me because although he was a very nice man, my own father was not. I can see all that logical stuff, just like you can. I know I am much better when seeing a female therapist. But logic doesn't stop the hurt. Abandonment-triggered thoughts are ingrained within the way your brain works and have become a part of that thinking that works by itself. It's based on automaticity and therefore any amount of challenging and 'logic-ing' it generally doesn't work. The thoughts will happen, regardless. The best strategy I have found for abandonment that was suggested to me (works for other things too), is to not 'attach' to those thoughts. So when you catch your brain thinking automatically something abandonment related, or anything unproductive and related to the past, you simply acknowledge it for what it is - an old thought, a product of the past. Things I have been taught to say/think are things like, "Oh, that's my abandonment story again...", or "I'm having the thought that..." (because this divorces thought from reality). Anyway, it's helped me, so hopefully it might help you. I hope it does, at least, because abandonment feelings are horrible.
Oh, and this...
@Aprooster74
I am the one that will ALWAYS be there
... and I mean this in a kind way and hope it helps your reflection. Seeing yourself as stand-alone, the only one who will always be there for you, actually sounds like abandonment issues to be. If you never fully commit, if you never fully see people as being able to be there for you as much as you can be there for you, it seems you're avoiding the potential pain that comes from the possibility of abandonment. It seems to me, you actually fear that people won't be there for you and can't be relied upon... so, hey, why try?
But, that's just a theory - I'm no therapist.