How to become better friends with an ISTJ?

hi guys, just wanted some advice - even as an enfp i’m finding it hard to become better friends with an istj - like she’s nice but it doesn’t feel like it goes that deep even when i try (we’ve also been friends for a while) and everything always seems so matter of fact like there’s no sense of understanding of when someone is trying to express themselves? not unless it relates to herself (and then the way it’s expressed it basically is like she’s brushing off of another person’s experience or opinion to talk about her own). it gets awkward, esp in group settings (and most esp when there are a lot of other introverts in the group). not sure how to explain it, but i really do want to become a better friend to her. thanks in advance for any insight you all may have!