Yes, because she's obviously not in love with you any more. I can see it, and just about everyone else here can see it. It's just a shame for you that you can't, and there's no point starting these threads if you're going to seek sympathy and advice and then just going to shoot yourself in the foot repeatedly. She is giving off every sign of being through with you, she's cheated, you don't make love any more, she finds reason to fall out with you over the most ridiculous things and with the most feeble excuses.
I'll lay it down to you as I see it. You annoy her, you irritate her because she doesn't feel the love for you any more and so all of your little niggly bad points that lovers accept are no longer acceptable. She knows that you can wrap you round her little finger if she needs a fall-back and she holds all of the emotional cards.
You deserve better yet I can't see you ever getting it if you treat yourself like this.