My logical side says this is technical, while my romantic side has entered into a competition with milk. Is there anyone who overanalyzes things like this?
In this title, the main issue is not the event itself, but the chain of thoughts it triggers in you. That chain sometimes works overtime in all of us. It has become a strange yet realistic concern that suits the Diet & Nutrition category.
Sometimes even simple things can lead us to deep thoughts. That frothy heart might be an escape from the ordinariness of daily life. The barista’s skill or the beauty of the milk, both are important in the end. The main thing is to enjoy that moment 
I think the level of seriousness you should give this shouldn’t exceed thirty percent. The remaining seventy percent seems more like something to share among friends. It’s a strange yet realistic concern that fits well in the Diet & Nutrition category.