A healthy relationship must involve:Group of answer choicesConstant communication, respect for each other and agreeing on everythingGood communication, respect for each other and spending all your time togetherGood communication, respect for each other and sexGood communication, respect for each other and consent

A healthy relationship must involve:

1. Good communication: This is key in any relationship. It allows both parties to express their feelings, needs, and expectations clearly and honestly.

2. Respect for each other: This means valuing each other's feelings, thoughts, and experiences. It involves treating each other with kindness and understanding.

3. Consent: This is crucial in all aspects of a relationship, especially in sexual activities. Both parties should freely and enthusiastically agree to all activities.

While agreeing on everything, spending all your time together, and having sex can be parts of a relationship, they are not necessary for all relationships and do not define a healthy relationship. It's important to note that every relationship is unique and what works for one couple may not work for another.