Looking for other people to be with “just in case” is entirely counterproductive to “trying to make things work with my husband”. The two statements cannot work together. If she was serious about trying to make things work with you, she wouldn't be making that post. For me, personally, that would be a deal breaker. I'd tell her it's a good thing she made that post, because things aren't going to work out with the marriage
Looking for other people to be with “just in case” is entirely counterproductive to “trying to make things work with my husband”. The two statements cannot work together. If she was serious about trying to make things work with you, she wouldn't be making that post. For me, personally, that would be a deal breaker. I'd tell her it's a good thing she made that post, because things aren't going to work out with the marriage
It was a bad choice of word to use. More looking at it from the partners pov than the OP's.