Short answer
A healthy Muslim marriage combines faith, good character, mutual rights, responsibility, affection, mercy, communication, trust and a willingness to resolve problems.
Islamic Guidance
What Islam teaches
The Qur'an describes marriage as a source of tranquility and places affection and mercy between spouses. Islam also commands good treatment and recognises marital rights and responsibilities.
Practical Guidance
What you can consider
Build the marriage around faith and character, communicate honestly, protect privacy, fulfil responsibilities, appreciate one another and seek help when serious problems arise.
Sources
Qur'an 30:21; Qur'an 4:19; Qur'an 4:35.