How do you not stress about talking?

I (19F) had a conversation today with my bf (20M) about communication. I’m a very talkative person, while he’s a very quiet type of guy. He’s the type of man who will talk if he has something to say and if he doesn’t he just won’t and will just enjoy the moment. However with me I always find the need to fill in the silence with topics. I honestly love talking to my bf bc words mean something to me. For me it’s a form of love and I never get tired of talking to him bc of that. However with him he loves taking to me but he’ll get tired of talking after a while and be quiet – which is absolutely understandable but sometimes I get anxious and those pesky thoughts of “is he bored?” Or “am I doing enough” get In the way when he told me they shouldn’t.

He told me that I shouldn’t be stressed to talk to him, and that I should be able to relax and just breath – that I don’t always have to say something to make time together memorable.

I stress too much about making conversation. Because before last year I was hardly ever socializing, ever. Only place my head was we’re in textbooks and assignments. And when it came to people I’ll always compare myself to others when they talk in groups or I’ll ease drop on conversation and listen to what topics ppl talk about and wish I was them, and wish I could talk like them.

Now I can. The summer before college I joined r/socialskills and learned my way up, and now I can talk about anything and everything – and I’ve grown a love for talking bc I can finally be able to get my thoughts out and talk to others. However the issue is that now I just don’t know how to relax about not talking. If I don’t say something I feel like I’m doing something wrong and stress out.

I shouldn’t be this way with him but after so many years of being so quiet and finally being able to not only earn the skill of talking, but also having someone to talk freely with, the last thing I want is to scare him off or annoying him to the point of frustration.

What should I do?