No time for proof yet..but consider that no one has gotten
it twice..albeit there have been some that retested positive
but they think it has more to do with the testing process..
and the nature of this beast is the same as others, offering
immunity..for a spell..(I have heard the minimum is 1 year.)

If I was looking for a serious relationship and was communicating with someone who was looking for the same, no doubt we would have already exchanged other forms of communication. If she contacted the virus I would not desert her. I would be calling and leaving a message asking how she is feeling or I would be emailing just to let her know that I will be here when she is recovered. Can't put a price tag on matters of the heart and I would not let the virus dictate to me how my emotional life will live.

Know if you really care?

This implies you don't understand yourself?
I suspect it is the reasoning behind the OP and you are seeking an answer that gives you what you want to believe about yourself.

Most people know when they really care about someone.
They don't need to test it.

Feelings don't need to be justified to anyone.
They are your feelings and you feel them, not anyone else?
You either care or you don't and its possible to care at one moment and not care at another, then care again.
This is because feelings change.

Its like love.
You can love someone with everything you have at one moment but not feel that intense love at all times.
So we try to justify it and seek others opinions of how they deal with love's fluctuations.
We try to apply other's reasoning to feelings we feel ourselves.
It doesn't work because we are the only one who have the feelings we have.

We don't have to test love.
We either feel love or we don't.

We don't have to test caring.
We either care or we don't.

Its really not that difficult to understand.

I heard the same, like the Spanish Flu came in two waves as well

So safety first is on the cards.

I'd have to wipe the phone off before and after we talked.

I hear you!

If i liked the person, i would stay. if he puts off talking on the phone or meeting in person indefinitely, i would re-think it. My daughter has been very sick for six weeks. Doc thinks she had a corona false negative test and now has a secondary infection. So yes, I would stay and see how it plays out.