During break time, you bought a magnum ice cream to your crush to show your gratitude in helping her during the previous activity. You bought a pair of magnum even though you don't have enough money. Thanks to your best friend who is always there to support you in times of need. As you approach her with confidence, you saw her talking to the person you saw last time in the canteen. As you turned around and leave, she called you. You have no choice but to confront her even though you feel that your heart is filled with sorrow. Then suddenly she introduced her brother. Your face turns to read with delight and also wonder? You told her that you didn't see her brother in IG, YT,FB or even tweeter. (such amazing stalker you are) then she told you the whole story to the point that you forgot to give the magnum ice cream that melted for some times in your hand. What phase change is being undergone as the magnum ice cream melt?