Read this: there's no shame in being publicly interested in and devoted to someone you love and care about!!! Now, I'm not saying that you should engage in PDA all the time with your partner, but there's no shame in being happy in love!
I think we have a tendency to always say that you should be strong and independent and have no reliance on somebody else, but I don't think that's always true. We shouldn't require someone else to be happy, but I don't think there's any shame in being happy to have someone special once we find them.
Snow White certainly wasn't bashful when she told the dwarves "there's nobody like him anywhere at all!" So, if you're totally swooning over someone special, just go with it, be proud, but don't brag (too) much--because then you'll end up annoying all your friends!