Such a beautiful creature, so strong a shell yet so fragile a core. And although not entirely human, when he wept it was floods of humanistic tears;of course, we never saw him weep. He knew if his full breed father caught him being so weak that his disappointment would be unsurpassed. He developed an iron mask which he hid behind day in day out.
He was not the fighter that his father had wanted, instead he was a musical poet, writing and playing for his band, Sick Racket. Goten did the same, yet his father had encouraged him from the very beginning as had his brother Gohan who had managed to go on as an artist despite his mothers disapproval. Goku grew more and more interested in the talents that his son's had managed to acquire. And they were wonderful, Trunks saw that and was amazed; if not slightly jealous.
In some ways Trunks was his father. He felt overwhelming emotion, yes, but he showed no one. On the outside he goofed, sang and remained a closed book; on the inside he lay in ruins.