It sounds like you are having a tough time with everything and I hope that you are working with someone who can help. Are you in therapy ?? If not, can you inquire about talking with someone about this.

Your daughter is not rejecting you. Being excited about daddy does not mean she does not love you. Just keep showing her how much you love and cherish her - she depends on you for consistent care. Dads often times get to be the "fun" parent but that does not mean that Mom's efforts are meaningless.

Take care,