lmao 'Why don't you want to be happy?'
seems so irrelevant to the conversation about ice cream when I read it.
Are you sure it wasn't her suddenly randomly addressing some deeper issue she thinks you personally have? lol
Anyway, what I can say is, food makes me feel good! Especially when I'm hungry!
Perhaps its just a biological/evolutionary thing. We need food to survive. Survival = alive = not dead = good = happy. ? Good foods give you energy too. Energy makes you feel more alive = perhaps more happy.
I find I tend to eat more when I'm in a good mood too. If I'm angry I'll not eat for several hours.
I am SOOO hungry right now talking about food. Food would make me happy right now, because that hungry feeling in my stomach really sucks.
My taste buds would tingle with happiness as well. Not just me. You have to think about your taste buds.