He did not betray his country . But the western part of the country actually betrayed eastern part , at least ruling class betrayed . Ruling class was from western part and they betrayed the majority east Pakistan. Not only betrayed , but the ruling class deployed army at the middle of the night to kill their own people and later faced the consequence.
Actually west Pakistani ruling class was the real traitor to democracy ( although now common Pakistani folks cry for democracy in Bangladesh, what a joke!) and right of majority of people of Pakistan . And that's the reason majority got freedom from traitor ruling class , that's all .
We also do not hate you . There is no issue between common people, so love for your people too . All were political game that we saw (and still seeing) and that played by ruling class.