Relationship Advice: How would you suggest I patch this one up?

I’ve been with my girlfriend for sometime now. We got into a stalemate over HIV testing. I often back up things I’m certain with the phrase “I’m HIV Positive about xxxx” to eliminate doubt. It was here when she questioned about my status (Tested or not). I told her that I donated blood back in 2009, and they’re still calling me back to donate. Granted, I didn’t have sex with anyone since the donation so I’m 99.9% sure that I’m clean. Now she feels I betrayed her trust; that I put her at risk. I cannot describe how horrible I feel. I’m in the middle of applying for Veterinary School but I feel that this is way more important. We graduated college together and my dream as a Vet (Pathologist specifically), is to purchase her an animal hospital that she can work out of. She’s an amazing girl and has all the qualities I could ever ask for. I care about her so much to the point where I’m willing to drop everything I have going for myself just to salvage our relationship. I guess I’m looking for a way I can make it up to her without interfering with the time she said she needed to think about her next move. I love her and I dont want to loose her. My mind is at a mental standstill, I cant sleep, can’t study, can’t even focus while at work. I went to take the test yesterday and now awaiting the results. Waiting is all I feel I can do….