Is it normal to be attracted to another man when in a long-term relationship?
Yep.Totally normal
Yes, it’s normal to feel attracted to someone else even when you’re happy in a long-term relationship. Attraction can happen without meaning you love your partner any less or want to act on it.
Being in a relationship doesn’t switch off your ability to notice other people. A passing crush or spark is common, and it doesn’t automatically say anything bad about your relationship—or about you.
What matters is what you do with the feeling. You can notice it without feeding it, and keep the boundaries you and your partner expect. If the attraction is making you question the relationship, that may be worth reflecting on, but the feeling alone isn’t a betrayal.