Can I urge you to read 'Attached' (Levine & Heller) which really helped me. I'm not autistic but I went through almost every stage you describe here, with an ex. I too had a detrimental childhood, relationships that never lasted and at last thought I had found a lovely man who I really liked/loved and could have a deep and true relationship with. But I think you need iron self-esteem and confidence to feel secure when you are with someone who NEVER says how they feel about you and your relationship, even when prompted - I salute pp who have achieved this! I couldn't understand it at first, got more and more anxious, I felt like you that he was bound to want to end it and in the end when, for the second time in about six months, I tried to say how I felt, it frightened him off. I realised as we went along that he was terrified of emotional involvement because of his own issues (I gathered this!) but this wasn't enough to make it OK for me while we were together. Afterwards, I kicked myself for being too needy but actually it's not needy to want someone to express their feelings for you and as pp have shown, to a lot of men it comes naturally and is no big deal when they are really into you. I read Attached and it became clearer to me that while avoidant people can be lovely, they're a nightmare for a relationship if you are the sort of person who gets anxious and needs a more demonstrative, emotionally engaged relationship. I've done therapy and lots of inner work which has also helped and I'm working on my anxiety, which is crucial, and my ability to express myself, but I also know that my next partner needs to be someone who can be more open. I agree with the pp who says don't just end it, try talking to him openly - you have nothing to lose and he does sound like a kind man who will at least listen but it's important that your voice is heard, whatever the outcome. I wish you all the best.