<human>: Can you succinctly summarize the text in 1-3 sentences?

Hey reddit! I'm in a really awesome relationship except for one thing - I find myself being too clingy. More specifically, I've expressed anxiety when my boyfriend opts to go out clubbing etc. with his friends and I've realised that this is to do with my own trust issues and nothing to do with him because he's been the sweetest boyfriend and has never given me any reason to distrust him. 

We've talked about it and he says he now hesitates to go out and feels limited because of my worries. We both put a lot of effort into our relationship - being kind, loving and respectful of one another, having a laugh, being open with one another - but this has become a sore spot. Just to be clear - I've never demanded that he not go out/to certain events but I realise that by expressing my anxiety I'm pretty much indirectly doing so. I feel horrified that he feels restricted because that's the opposite to the type of gf I want to be.

Through a lot of reflection I've come to a point where I genuinely am happy when he gets to go out with his friends, but how do I show him that
a. I'm sorry
b. I really am GENUINELY happy for him to go out

Also, any advice from former clingers on how you dealt with these problems in your relationship and dealt with your own insecurities and worries are really welcome :) Thanks in advance reddit!
<bot>: I've been a clingy and anxious girlfriend when my boyfriend goes out with his friends. How to show him that I'm sorry and genuinely happy for him to go out?