Should I date someone who might have been married before?

Question:

Hi,

I'm a Christian and in my late twenties. There is this young woman at my workplace whom I am really interested in. I don't know her too well, but I do know that she is very sweet and that she claims to be a Christian.

The problem is that I think that she might have been married in the past. Before asking her out, I wanted to know more about her, so I decided to look her up on social media. On some of her family's pictures, there appears to be a couple of wedding pictures of her.

Currently, she does not appear to be married, and she does not have a ring on her finger. In the few times I've hung out with her and other co-workers, she has mentioned that she lives in an apartment with room-mates and she has never brought up having a husband. She still has her maiden name.

I know this sounds creepy and stalker-ish, but I have social media to my disposal and wanted to know more about her before asking her out. I did not want to waste my time asking out a non-Christian.

With that being said. How should I proceed? My concern is that she might have had an illegitimate divorce (see Matthew 19:9). I really do not know what happened there, and I don't want to pursue an adulterous relationship. If she divorced her husband because he committed fornication, then that technically frees her up for re-marriage, but if it was simply them parting ways, then she and I would be committing adultery if we dated.

I feel like she is interested in me, but I don't know how to proceed or if should I in the first place.

Thanks.