My life is so boring

I’m an introvert and I love having a quiet life. But I’m almost 30 and my 20s I had 0 friends. I’ve never gone out and I don’t really do anything on the weekends. My fiance goes out with his friends all the time so I’m usually just in the apartment alone in the quiet. It’s nice most of the time but I feel very down and lonely. I’ve tried bumble BFF, I’ve tried reaching out to people, I feel like I’m just meant to be alone and I’m not fun to be around. Can someone give me some words of positivity? Bc I just feel so sad.