I'm just going to do these in no real order because organization is for losers.
Phillipa loves to learn about history. Not recent history though, but the dark ages and "older" history. She just loves the elegance and adventure of it all.
Vincent's the kind of guy to get a song stuck in his head for days at a time. If he's bored and you can get close enough to him to hear it, you can hear him humming whatever song's stuck in his head quietly to himself.
Once Phillipa tried to surprise Vincent when he came home from work by making him dinner. She waited by the front door, just out of sight. He walked in and simply said hello, sat down at the table and didn't eat, obviously (to her, at least) upset about the day he had. That was the last time she did it without asking his permission first.
Vincent once bought her flowers, one for every day he had known her. He had to travel to two different towns to collect enough.
Phillipa rarely gets sick, but when she does it's full on I-think-this-is-what-death-feels-like sick. Vincent always tries to take care of her and ends up getting sick too.
Phillipa's recently taken up Yoga. Her goal is to become as flexible as Vincent who reminds her that it's practically impossible but she insists she'll get there one day.
Vincent goes with the gang to the Old Church every year to honor the deaths of Zack Fair and Aerith. After those he disappears for up to three days, where he goes to the old mansion in Neibelheim. He never tells anyone why, but it's his way of remembering Sephiroth and the man he could have become if it hadn't been for Vincent's failure.
For her birthday this year, Tifa and Cloud bought Phillipa a studded leather jacket. She loves it and wears it all the time.
For the first time since Meteor, LOVELESS was performed on-stage like it used to be in a little theater on the outskirts of Edge. Phillipa and Vincent ended up getting tickets. Phillipa cried several times and although he'd never admit it, Vincent got a little teary eyed as well. They tell everyone he fell asleep though to save him from possible teasing.
A few months ago Marline and Denzel came to visit their Uncle Vincent. They met Phillipa, who they loved. The found out Vincent and Phillipa have been dating for a while and they now call her "Aunt Phillipa." It was Marline's idea.
Over the years, Vincent's become slightly more comfortable venturing outside the walls of his home in "normal" street clothes. Phillipa took notice and bought him a pair of nice leather gloves to cover his mangled hand. He's only said it once but he's extremely grateful every time he puts them on.
Once Vincent tried to surprise Phillipa (who had been house-sitting for him at the time) by coming home on a mission early. She was asleep so he tried to sneak into the room, only to have her wake up, scream bloody murder and accidentally shoot him with one of his own guns. She shot him straight in the heart. She apologized profusely and cried, but he was so proud of her shooting he wasn't upset. He just sleeps on the couch if he comes home early now.
Someone at work once grabbed the coffee that was intended for Vincent. It was so sweet and full of sugar they didn't sleep for 3 days straight.
Whenever they get into a fight, they apologize not with words (although those are sometimes used) but with food. If Phillipa needs to apologize, she brings home pasta. If Vincent does, it's either oriental (like chinese) or breakfast food. The latter is used only in extreme circumstances though.
Phillipa's favorite part about watching movies late at night with Vincent is when she puts her head on his shoulder.
Vincent's never said it because he's not sure how to bring it up, but he wants to take Phillipa to the old mansion in Neibelheim. It was an important part of his past, plus if he feels the need to disappear again, she'd know where to find him.