Getting tested, feeling very lonely

Hi everyone. I decided to finally get tested (it's been on my mind for 3 years) after my mom passed away 5 months ago. The center I'm getting tested with recommends having a person with you when you get the results. I just moved abroad and none of my friends are with me and I've been reluctant to tell them I'm getting tested even when they know that my mom died from a hereditary desease, but I've never been in the mood to explain exactly what it is. I guess some of you understand.

I don't want to involve my family on this, since they are in danger of having HD as well and my siblings have not decided to get tested yet.

I have a boyfriend and I live in his house with him. He knows everything and I've had the courage to ask him a few times what if I'm positive. His answers have been "Do I have to answer that question now?", "We'll see later" and today he said "This is a new relationship and I cannot promise to be with you". We've been together for a year and I moved here to be with him. I've accepted he is not going to be with me no matter what, and it hurts so bad. But I want to get this test done and I'll make this whole process on my own. Has any of you done this by yourselves? Any advice? Any support group that I could join? Thank you.