Is it a concern that she (18F) listens with interest but rarely asks me (19M) questions back?

I (19M) have been talking to a girl (18F) for about 7 months, and overall I really like her. We joke around, act silly together, and I feel comfortable with her in a way I don’t with most people. She has many good qualities, and when I share something about myself, she listens carefully and seems genuinely interested. The only thing bothering me is that she rarely asks questions about me or asks follow-up questions. I mentioned it once and she changed briefly, but after a few days the same pattern returned. Is this a valid concern, or am I overthinking one aspect of an otherwise good connection?

TL;DR: We have a strong connection and she listens well, but after 7 months she still rarely asks questions about me or follows up on what I share. I’m wondering if this is a valid concern or just a communication-style difference.