Wedding Plus-one Issue

I agree with the other gals who have said that you should invite just her, however, don't be surprised if she can't make it due to the lack of a plus one.

You could just say that since the wedding is pretty soon now, due to budget and space reasons you have to leave him out of it. You don't know him as well as you know her, and you have to be choosy with last minute invites as you don't have too much wiggle room with your guest list. This is reasonable and she should understand.

I agree with Tori, since you have only known her a little while, I would say there is a spot for her at the wedding and you would love for her to attend.

You don't have to get into why you're not giving her a plus-one, just simply state there's only one spot.

Are any of your co-workers that are invited likely going solo? Maybe instead of giving her a formal invitation, since she is still pretty new, you could suggest that so-and-so take her as their date?

Seeing as how you only have a couple months before the big day I would say your best bet is to let her know that, even though you have only known her for a short while - that you would love for her to come to your wedding. With that being said, you only have room for one person (Oh darn!) and that she wouldn't be able to bring a plus one unfortunately.

This is how I would go about it. Even if on the big day she see's empty seats or that there could have been a couple more at the table where she sits you could always say that those people cancelled last last minute or that they were a complete no-show!