It’s normal to notice attractive people sometimes. Being attracted to someone’s appearance doesn’t automatically mean you’re being unfaithful. What matters is how you choose to act.
If you’re in a committed relationship, be careful not to let harmless attraction turn into flirting or emotional distance from your partner. Focus on the person you’ve chosen to build a life with.
Take time to appreciate your own relationship. Showing love, attention, and respect to your partner will usually do much more for your happiness than chasing every new attraction.