Thank you your post has helped me put all of this in realistic terms more than you know. My POI does not have fast speech or use a big vocabulary. He is also not robotic, he actually displays quite a bit of emotion when we are physical together. I just thought maybe since he didn't communicate it towards me in words, it was a problem. The only time he's told me he's loved me (outloud through his voice) was when it slipped out during sex lol and he got really rude afterwards i don't know why maybe because he was embarrassed . And he'll only tell me his feelings in hidden ways like through a song he finds or other things that are more in writing like once in a great great while in text but it's abreviated or through a meme... or hidden. That's just the way he is... he's called me beautiful and complimented me a lot in the beginning but that has kind of faded with time. It's like he now feels scared and doesn't want to be open up to me? not sure why. He's definitely got some emotional issues. He used to do things in a repetitive way a lot i noticed like the aspergers trait, such as copying my words or using the same phrases over and over, or copying other people's word choices um his way of conversing is jumbled and awkward in some of his text messages. I think he has ADHD. He might have a few similar traits to aspbergers but after watching some clips of sheldon from big bang theory, I would say in no way is he like that guy lol.. if anything he is most definitely ADD, and i know he has anxiety disorder because he told me. So what a relief. I was so close to confronting him about it and i'm glad i didn't because he would have thought i was obsessive and crazy. I'm still going to observe his behavior though just to be sure! hahaha
Sounds like my ex, all of what you say sounds like a behavior of someone who doesn't wanna commit, is either scared or just has a habit of taking people for granted after the initial honeymoon phase. Also, some guys are not that expressive either.
My ex is like that, initially he was suuppppperrrr sweet, would check on me all the time, and I guess after sometime as we got comfortable he just started taking me for granted or he thought I wanted more than he does and he didn't want to lead me on so he was hot and cold. Of course very loving and affectionate when going to bed. lol. Also, he was more left brained than right, hence not emotional or sensitive, big ego to share any issues..so as much as I loved him, I knew that was not for me. So, that's why he became an 'ex'ample of what I don't want in my life.
Also, using the same phrase over (in normal frequency) or picking up your phrases, I would like to believe is very normal too, I do that too! I have a very permeable personality. I will pick up slangs, words, habits of people I spend too much time with. When I was in school my handwriting would change, the way I talk would change, my spending habits would change.. I would do that unconsciously, and I don't think it's a big deal. But obviously I don't know in what capacity you are saying repetition. Every other person has anxiety issues.
I have seen Yona sometimes gives examples, of what she is seeing and she will draw a parallel to explain and give you a better picture. So maybe ya just relating to her son.
Having said that, I would say if his behavior is bothering you, you can always talk to him- tell him you feel hurt, or what you expect and how you feel in the nicest and honest way, and just have a conversation. Because if he has aspergers you could blame it on the condition, but if that's his nature and it's not acceptable to you then it's best to know now than later.
I am just saying, obviously you know your situation best!
All the best!!