Mary and Philip. A dreary depressing marriage?

Just reading up on Mary I, I am now so sad for her life. I think the only glimmers of hope was when she was crowned, when she thought she was expecting, and being in love with Philip. Just hearing it was a political marriage and Phillip wasn't all that attracted to her, well according to reports he was accepting but not affectionate. Did Mary know Philip wasn't into her as much as she was into him?