As the topic says. What is the best way to tell her that things about her upset you. Like how demanding she can be. And how she can take forever and ever to get ready. Or even be ungrateful for all the driving you do. I've kinda been passive-aggressive about it. But now it's just really pissin me off. Do I just literally tell her. "Hey this shit is pissen me off." Thanks in advance guys.

Hey guys. I acknowledge it's a silly question. But I am not very experienced with relationships. So I do not really know how to address this properly. I'm still using the passive aggressive approach, but I feel that's not gonna get me anywhere. Not only that, I don't think she's getting the point. That I am 'mad' for so and so. I'd appreciate all input my brothers.

I'm not a fan of the passive aggressive crap, its weak and childish. Just be a man and say it like it is.

You drive a lot and feel like she doesn't appreciate it? Tell her that. Straight up. And so forth with all of it, although you should really pick your battles. If something isn't a big deal then drop it and don't be a bitch about it, if it IS a big deal then make it very clear to her that this is the case.

A few other things:
- Don't be an asshole about it, call her out in a calm and collected manner in private
- Don't let her off the hook with jokes or humor, be serious until she takes it seriously
- Don't make threats you can't back up. Like if you say "Stop doing X or I'm not driving you to shit anymore" and she does X then keep your word.
- Don't let her bait you into a fight or derail the conversation, stay calm

Just be polite, direct and calm but firm.