Is it normal to be jealous of your best friend's relationship?
Mostly.Normal for most people
Yes, it’s normal to feel jealous of your best friend’s relationship sometimes. It may be envy of what they have, or worry that their partner will take up more of your time together.
A little jealousy doesn’t make you a bad friend. You might want the closeness or excitement they have, or miss how much time you used to spend together. Those feelings are pretty human, even when you’re genuinely happy for them too.
What matters is what you do with the feeling. Try naming what you’re actually missing, and ask your friend to make time for the two of you without treating their relationship like a rival. If the jealousy keeps turning into resentment or attempts to control who they see, that’s a sign to pause and work out what’s underneath it.