Will my mom miss my dad in heaven?

For God said that there is no marriage in heaven. My mom is a devout Catholic, and believes in Christ Jesus as her one and only savior. My Father on the other hand was raised Mormon. He now isn't really sure about what he believes. I've tried to talk to him about it, but he tells me otherwise. I am just curious, if my Dad doesn't go to heaven, and my mom does, will my mom miss him?