Does the petitioner bear the sin of injustice for abandoning his wife, whom he married as a courtesy to his father despite not loving her, and what is he advised to do?

Parents are not permitted to compel their child to marry someone they do not wish to, but if the marriage takes place, the husband is obligated to fulfill the wife's rights, as Allah Almighty says: "O you who have believed, fulfill [your] contracts" (Al-Ma'idah: 1), and because the marriage contract is one of the most solemn contracts. The husband sins if he falls short in his wife's rights without an excuse, as Allah Almighty said: "So do not incline [completely towards one] and leave her [in a state] of suspension" (An-Nisa: 129). Furthermore, a husband's intimacy with his wife brings him reward.