Here is the full list of all 45 Matrix Hearts - there are Season 1 achievements.
You made your first choice in the game. Congrats!
Met Layla for the first time. She's smarter than you.
Had your first one on one with the ocean-loving Gemma.
Who knew a little redhead had so much crazy?
Yup. She's a piece of work.
You got a peek behind Xia's... lens.
Collecting Matrix Hearts takes the right choices!
Completed Chapter 1
Max Hearts with all women in Chapter 1
Make an Otterly-Ultimate Choice! These are kinda important.
Went to a party and made new friends. Wohoo!
You sailed home with Captain Stormy. Greatest captain ever!
Layla gave you a tour of the Prolifiant museum
Accomplished the treasure hunt with Xia.
Befriended the bird. You're almost a pirate now!
Completed Chapter 2
Met a very mysterious girl...
Max Hearts with all women in Chapter 2
Chose all the right options during the storm!
You look like a real Olympian now! Kinda.
You're pretty much Jackie Chan.
Agreed to partake in a Monster tournament.
Chrysta is going to make you money. Maybe.
Because this is a role-playing game!
Friend more animals, win more.
You were the best one to reach the top!
Gifted Layla with her Ultimanium Prize. What a prize!
A kiss on the cheek?
The ocean is beautiful!
A shark friend gave you the ultimate gift.
Gemma's team now has plus one Canadian, eh.
Captured all the best moments on camera with Xia.
Began the romantic adventure for Xia.
Xia captured Kanji in the water. Important for the future?
That's probably what love is, right?
Was it the perfect date? Who knows. Stormy liked it, though.
Began the romantic adventure for Stormy.
Rylee gave you a personal tour of her room.
You activated your one chance to get Rylee for the mission.
Like no one ever was!
You and Rylee make the perfect weapon.
Agree that those picture are a top-notch plan for victory.
Completed Chapter 3
Max Hearts with all women in Chapter 3
You collected the master amount of Matrix Hearts in the episode.