My boyfriend just told me something and I'm not sure if I reacted correctly and how much I should be freaking out right now.

I'm going to keep this short but basically my boyfriend of one year told me he was HIV positive and wow it just came out of no where.I would have never guessed in a million years that this guy has HIV. He says he takes pills everyday and its almost impossible to get the disease from him. When he told me I was very nice about it and told him its ok but now I feel like I might have reacted wrong. Should I be upset with him? I definitely do not want HIV so it's not like I don't care I just don't know how serious this is. I'm getting nervous because I'm not sure if medication and stuff works. We have never had sex, but oral is as far as we've gone so should I be scared I have contracted it? should I be upset with him about not telling me earlier?I was also planning on breaking up with this person way before this so its even harder now because of this. I don't want him to think I'm done because of his diagnosis. (but personally I don't know if I should be mad about that or not)He told me this disease has made him suicidal a few times. I tried hinting the idea that we need time apart and he just looked defeated because he believes I am trying to end it because I know about his diagnosis.All around I have no idea what to do. I have never found myself in a situation like this, and I don't know if I should be freaking out right now or not.