Can you lustfully desire the person you're married to?
First off, a few things to start off, I am not married, and an unlikely to be withing the next couple years. However, in my reading and studying the Bible, lust is something that I've been interested in understanding a bit better.
My understanding of lust is looking at someone through a lens of "I want to have sex with this person," as in Matthew (I forgot the chapter), Jesus says that looking lustfully at a person is the same as commiting adultery with them in your heart. This raised the question, can you list after the person you are married to, or is there a different word for it? You can't commit adultery with the person you're married to, so is it the same term/concept, or is there a different word for it?
Secondary question, what is lust, not as in the sin, I understand that. I mean like how love is both emotions and action, is lust also and emotion and action?
(Sorry if I put the wrong flairs on this, I wasn't sure)