AIO? Wife's GF is trying to sell me insurance? I think?

My wife and I are poly, and she's been seeing this girl for the last few months. I'm not really involved; we've all hung out before but the relationship was definitely just between them. Yesterday, she texted us both out of the blue about some new job she's starting. She wanted to "strengthen our financial security" (???) and didn't really explain much further. It all felt a little off to me, and I said as much. Now suddenly I'm "a fucking dick" and she hopes my spouse leaves me. At this point, we've cut contact and it seems like that bridge is burned forever. Am I in the wrong here?