yes confidence is great but hearing from your partner that he feels the same way is important too. It isn't clingy/insecure, it's just one way of showing love, we all feel poopy and need reassurance sometimes. Plus if person 1 expresses love constantly but person one only replies but never expresses it on their own, that shows that P1 cares way more about P2 than the other way round. It doesn't always have to be words, but they are usually the best/easiest way. You can't just be confident forever that your partner loves you if they never express it in any way.
There now that i've tried to make a good comment you can bring on the hate
There now that i've tried to make a good comment you can bring on the hate