That's really tough.
For now, don't project what *could* happen. You're sick, not bad, and you're working on getting better. She knows this, but I can appreciate how hard this may be for her, not knowing what's going to happen next with you.
Whatever happens with her, you can't survive like you are now - you need to get better no matter what, and you need to do it FOR YOU. Yes, she's very important to you, and rightly so. But without you being better, you have nothing. Your health needs to be your only concern right now.
I know that sounds harsh, and it's easy for me to sit here and say it. But until your head is in a better space, nothing will work right. You're doing the right thing by getting help. Keep on, and know that the TB community is rooting for you.