Buddleja or bee bush?

Buddleja or bee bush?

Observation - Buddleja or bee bush? . Description: This is my Buddleja bush but with no butterfly’s but its packed with bubble and honey bees …I wonder if the butterflies are scared off by so many bees? I like to think I’m doing my bit to help the bee population and also I’ve stud really close to it and

This is my Buddleja bush but with no butterfly’s but its packed with bubble and honey bees …I wonder if the butterflies are scared off by so many bees?
I like to think I’m doing my bit to help the bee population and also I’ve stud really close to it and never been stung.
My question is; its more like a tree than a bush and it was there 10 years ago when we moved in and over the road is one with purple blooms but hardly any insects on it so is there different varieties that attract more?