Short answer
Persistent intimacy problems deserve attention rather than being ignored. The underlying emotional, relationship or health factors should be considered.
Islamic Guidance
What Islam teaches
Islam encourages reconciliation and kindness between spouses. Seeking appropriate help is consistent with taking marital responsibilities seriously.
Practical Guidance
What you can consider
Have an honest private discussion and consider qualified medical, psychological or marital counselling when appropriate.
Sources
Qur'an 4:35; Qur'an 4:19.