Loyalty vs FAITHFULNESS

I have heard these terms used interchangeably but they are not the same. Loyalty is standing by your partner and being a reliable support. However, faithfulness is staying sexually and emotionally exclusive to your partner. Meaning you defend your partner and you're emotionally supportive. Faithfulness is being true to your partner by not having romantic or emotional infidelity or any sexual contact with others. In the past I have had conversations about this and what strikes me odd is how many people have a misconception that watching sexually explicit content whether it's porn videos, sexually explicit pictures, anything having some sexually explicit content or engaging in a hook-up isn't a form of infidelity aka unfaithfulness. News flash, it is unfaithfulness because porn or sexually explicit content would be considered emotional infidelity while the hook-up being both emotionally and sexually unfaithful.