Straight: Alice gets upset and has a meltdown when she finds out she can't afford the wedding dress she wants.
Exaggerated: Alice gets upset with a bridesmaid who is slightly out of step at the rehearsal, and insists that her bridesmaids gain weight so as not to upstage her beauty.
Downplayed: Alice doesn't lose her temper, but she does have a long and detailed set of expectations for her special day...and she doesn't thank the family members and friends who helped make it possible.
A wedding vendor whom Alice has signed a contract with is not living up to their contractual obligations.
Alice (who already has a Hair-Trigger Temper) is stressing out over planning the wedding, which is a lot of work, and she is overly concerned about "everything being perfect."
Alice is pregnant, and her hormones are acting up, causing Mood Whiplash.
Alice (whatever her numerical age) is emotionally immature.
Alice is under pressure from overbearing, meddlesome relatives (and soon-to-be in-laws) to do things their way.
Alice never once loses her temper with anyone (vendors, bridesmaids, Bob). She may or may not be taking a large role in the wedding planning.
Alice insists that everyone's making too of big a deal about her wedding and then goes to the wedding in her pajamas.
Everyone except for the bride insists that everything must be perfect and over-reacts to minor mistakes, trying to live out their dream wedding through Alice.
Alice under-reacts to everything about her wedding day from some infighting to a bunch of assassins putting poison in the cake.
Gender Inverted: Bob screams at one of the groomsmen or vendors.
The florist calls and tells Alice that the flowers that she wants are not available. Alice calmly agrees to meet with the florist to pick out a Plan B.
Alice hires a wedding-planner and delegates the lion's share of the wedding planning to her.
But then Bob wants to have his friend's garage band play at the reception, and Alice vehemently insists that they don't, getting into a screaming match with Bob over it.
The work is a social commentary on the wasteful aspects of big weddings.
Lampshaded: "Alice, I think this wedding business has gone to your head. Where is the cool girl I proposed to?"
Invoked: Something goes wrong with a vendor.
Exploited: Bob takes advantage of the chaos to sneak out and go to the pub.
Defied: Alice doesn't scream, and comes up with an alternative plan.
Discussed: "Ever since she got engaged, Alice has become such an entitled, selfish bitch. It's like she's a different person."
Conversed: "She probably always had that in her; the stress of wedding-planning just makes it worse."
Deconstructed: Alice is stressed, but she is taking out her temper on people she cares about, and who are trying to make Her Special Day as special as possible. Her treatment could alienate them from her. It could also result in divorce (or cancelling the wedding) if this alienation extends to Bob.
Alice doesn't take on more responsibility than she can handle, isn't obsessed with perfection (knowing that the marriage is more important than the wedding), and doesn't leave planning until the last few months before. She also sticks to her budget, and she gets reliable vendors (and a day-of coordinator or a wedding-planner to make sure everything goes off without a hitch.)