I recommend making the caramel sauce and the ice cream ahead of time to cut down on your preparation the day of Valentine’s day. In the prep time, I included the time it will take to make the caramel sauce and the ice cream beforehand, but if you do this a day ahead of time, it will cut the total time way down!
Find it online: https://paleomg.com/valentines-day-brownie-mocha-sundaes/