Here is the full list of all 45 Amorous achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Finished the third date with Mercy.
Finished the second date with Zenith.
Changed clothes to impress your dates.
Finished the third date with Seth.
Requested a song at Club Amorous.
Finished the second date with Mercy.
Got Lex's phone number.
Finished the second date with Seth.
Finished the first date with Zenith.
Didn't miss any shots at the Shooting Range in one round.
Missed less than 30 targets at the Shooting Range in one round.
Made more than 60 headshots at the Shooting Range in one round.
Finished the first date with Dustin.
Got Zenith's phone number.
Got Dustin's phone number.
Listened to what Coby had to say.
Finished the first date with Mercy.
Finished the first date with Seth.
Finished the first date with Skye.
Got Seth's phone number.
Got Skye's phone number.
Got Mercy's phone number.
Checked your phone for the first time.
Entered Club Amorous for the first time.
Got Coby's phone number.
Finished the prologue.
Customized your Fursona.
Got Jax's phone number.
Got Remy's phone number.
Finished the first date with Jax.
Finished the second date with Jax.
Finished the third date with Jax.
Finished the second date with Skye.
Finished the third date with Skye.
Finished the second date with Dustin.
Finished the third date with Dustin.
Finished the third date with Zenith.
Finished the first date with Remy.
Finished the second date with Remy.
Finished the third date with Remy.
Finished the first date with Lex.
Finished the second date with Lex.
Finished the third date with Lex.
Scored more than 2500 points at the Shooting Range in one round.
Cooked a perfect meal.