I get what you're saying. I have abandonement issues as well and I'm having similar issues with a friend of mine of many many years. We both have issues and depression due to life. We live 3 hours away from each other and we never had issues doing so. Then come December and I noticed him pulling away and being more distant. Our conversations diminished and I was struggling holding a conversation with him because I felt that our conversation wasn't flowing.
I decided not to say anything and today he told me that if I wanted to contact him that it would have to be trough his best friend because he doesn't know where life will take him but I could use this person as a middle person. This seemed more to
Me like avoidance and I way for him to answer and communicate as he pleases.

I think it's important for you to communicate with your friend and let your friend know your feelings. Let them know how important they are in your life and what you've been feeling lately. I think sometimes they need to hear it for whatever reason. This is what I did. Sad to say our communication is so poor that I actually had to text it. now all I can do is have him understand where I'm coming from.

For those of us with abandonement issues this is difficult to deal with. It only decreases the chances of us trusting others due to these experiences.