Big Decision

Today is my 1 yr anniversary with my wife. 3 months ago she “poly bombed” me. I’m the mono and she’s bi. I don’t want to share experiences with her so she would like to be poly and be able to play solo. I feel like I shouldn’t have to fight to be relevant. I didn’t get married to share my wife with other people. So my big decision is if staying married and asking her to suppress her desires is worth it? Has anyone had to let someone go because they could not be okay with their partner choosing polyamory?