It depends on the person. If you’re waiting to get all cranked up about someone before you marry him, you’d do well to ask yourself if anyone you know well or anything you love to do still has you cranked up. If you are the kind who loses your “cranked up” enthusiasm as soon as the colder side of reality hits you, settling instead into a more “balanced” set of feelings about those you know well, then you would do well to aim less for the spouse who arouses enthusiasm. That person probably isn’t out there, not unless you rush into a marriage before you have a change to lose your sense of excitement.
If, OTOH, you get all cranked up when you are going to be able to see someone you are very fond of or still feel a thrill when you get to do something you are most fond of doing or still feel like a kid every time Midnight Mass comes around again, but just haven’t found a romantic partner who gives you that sort of a thrill, well, then I’d say that holding out for Mr. Excitement is a far better prospect. If you want to wait, then sure, when you start dating someone and find that the excitement that your best relationships and most your favorite things elicit in you just isn’t there, don’t give up on finding that same excitement in a spouse. Keep looking, because sustaining that sort of excitement probably is in your emotional make-up.
Does that make sense? I’m just suggesting that the OP look at her personality and ask if what she is waiting for is something that her temperament is ever likely to give her. If yes, then sure, stay on the quest. If not, then maybe it is time to admit that you aren’t much different as a lover than you are as a friend or a sister or a sports fan. That’s OK. Just look at who you are, and go with that. Don’t let the romantic stories talk you into trying to make yourself over into someone you are not, or ask some guy to give you what nothing else in your life ever does.