When you posted on here, were you expecting the community to be sympathetic and say it's "probably" ok? Or somebody to come forward to say they're doing the same thing - which doesn't really mean it's right in the first place.
You're not the first poz person to have fallen in love and struggled with this issue. And I know you won't be the last either.
What you're doing is attempting to start a relationship that is not based on honesty. Even more important, every time you have unprotected sex with her, you could infect her with a traumatic infection that would last a lifetime. Is this what you really want to give her after all the trust she's given you?
I know love can truly muddle anybody's sensibilities. But deep down I'm sure you already know that what you're doing is wrong. I suggest, and this I say with love, that you stop lying to yourself and to her. Stop putting your loved one in danger of contracting the virus. What you're doing is wrong, and even criminal in some states. I know it's tough for all of us out there, but here's the unpleasant truth: the only viable way to start a relationship is to be honest and disclose your status before you start having sex with the other person. Good luck.