Our sexual desires are very different and it has become a cause of quarrels. How can we resolve it?

Talk openly without blame, look for a meeting point, and check for physical or emotional causes; intimacy is the right of both spouses, not just one.
Allah describes husband and wife as garments for each other (al-Baqarah 2:187) and commands living together in kindness (an-Nisa' 4:19). The Prophet ﷺ affirmed that your wife has a right over you (Sahih al-Bukhari 1975), and also urged wives not to refuse without excuse. Differences in desire often stem from fatigue, stress, medication, hormonal problems, pain, unresolved conflict or feeling unappreciated. Steps: talk outside the bedroom; explain what makes each of you feel close; schedule time together; and see a doctor if there are health problems. Coercion is not permitted, and persistent refusal without reason also damages a marriage. See Etiquette between spouses.