I feel like I'm getting mixed signals from H.

If you're getting mixed signals, the rule of thumb is to look at the actions, not the words.

I feel like he wants... Then I feel like he wants...

You're letting your actions be based on your feelings. That's going to always flip flop and make you act topsy turvy, because that's how feelings go.

He can be content one moment and the next moment he has a look of misery or uncertainty on his face.

Just wondering what a blind LBS would do if they couldn't see their WAS's "looks"? Do you think they'd not be able to ever reconcile?

I'm wincing right now. Tell me what I'm thinking. Ha! You're wrong. Stop trying to analyze looks on faces. Looking content one moment and not the next is not the sort of stuff that will effectively lead you. You're gong to fall into the trap and react based on faulty premises. When you react instead of act, you shortchange viable solutions simply because you're judging the results based on the wrong information.

I thought I'm supposed to get H to pursue me, but at times I feel like I have to pursue him, but if I do, what if it backfires? What if that's not what H wants?

Others have paved the way, and have found time and again that pursuing types of behaviors, even though they feel right, work against the desired goal. If you DB, and give it enough of a reasonable time, you might see little positive steps. If you don't see results after giving enough time (Michele says a couple of weeks, longer if the WAS doesn't live with you, so temper the time allowed, as these couldn't be strict time lines), then stop and rethink your strategy, based on what's been happening (not on what kind of face H has on today or what you think he may be thinking) and do something different accordingly.

I'm just a total mess now, and I don't know what to do.

that may be due to not following a solid plan purposefully, and because of permitting your feelings to dictate your actions. Speaking of which...

I feel like H wants something from me but then I feel like he doesn't.

Again, as I wrote earlier... these are feelings and feelings flop all over the place...