It's hard to make eye contact when you're talking about something upsetting, so I don't think it should be that big of a deal that you don't make eye-contact with your therapist. I would be more concerned if that was the case when you talk to anyone about anything, such as small talk with coworkers or whoever. I don't make much eye-contact with my therapist, and I have no autistic tendencies or anything. It's just easier to think about deep and upsetting subjects when you're not making eye-contact. Isn't that one of the reasons they used to have you lay on a couch and just ramble in the past? That's my opinion.