Am I alone?

I sent this to what I guess will be my soon to be ex husband. I found out about his infidelity. He refuses to talk about it. Our 2 year wedding anniversary is next month. We just built a home this past year. We were planning a trip to Cabo. We really never fight. He wasn’t acting as an unhappy spouse so why!? Wtf is wrong with me!? He is my best friend I thought we shared everything. My heart is so beyond broken I wish I could be one of those strong powerful women that just said f him I’m done. I know there is no way we can continue I just wish my life could go back to before.