Feelings of Rejection

I'm now experiencing the feeling of rejection by my own daughter phase. She's been wanting to be around and play with her father than she does with me at the momment. For the past few days, she has been doing nothing but cry whenever she is left with me. She will only be happy for a few minutes and then cry as if I was beating the crap out of her which I don't. Whenever she does that cry, I call it the cry of death or death cry.
It really frustrates me a lot when I can't put Sarah down at all for a nap or even bedtime without her giving me problems. She can be on the verge of falling asleep, but will fight it until Ryan comes home around 11:30pm and then go fast asleep when he lays her down! I feel like she doesn't love me anymore and would rather spend all of her time with her daddy and could care less about me. I wound up calling my mother in the wee hours her time since I am 9hrs ahead of her crying my face off. She calmed me down and told me that it's just a phase and that all mothers go through it at some point.
I wish I would have known about this before hand so I could possibly prepare myself. I know I am not a bad mother and that she still loves me, but it's really hard feeling rejected by your own fleash and blood and not wanted. It's actually one of the worst feelings I have ever had. I'm trying to stay patient and understanding, but I guess I am still dealing with baby blues or something and plan on bringing it up to my therapist tomorrow morning. This is also been hard on me with still recovering from my surgey and trying to not put a lot of stress on my body.
I am hoping for things to pass quickly so I can get out of the baby blues rut and go back to being and feeling "normal" again. Just have to take things one day at a time and deal with it.