I'm uncertain about how to interpret my girlfriend.

I’m a 24-year-old guy in a 9-month relationship with my girlfriend, who is also 24. I care for her deeply, but I'm facing some communication challenges, especially when we're apart. When we're together, she shares a lot, like sending me pictures of her nails or bouncing business ideas off me. However, when we're apart, I find out about these things mainly through her social media updates. It feels like the only time she reaches out with enthusiasm is when she needs something from me. I can’t shake the feeling that I don’t play a significant role in her heart—like I’m just filling space until she finds something better. I have to bring up communication issues every couple of weeks. Whenever I assist her with something, she expresses appreciation, but I struggle to believe it since she rarely shows interest in what’s happening in my life. When we’re together, I feel her warmth, but it doesn’t translate to our time apart. Recently, I asked her about her hopes for our relationship this year, and while she shared a few thoughts, she didn’t bother to ask about mine. This leaves me feeling discouraged about bringing up important aspects of my life, since she doesn’t seem to put in the effort to know how I’m doing. For instance, if she asks me how my morning went, that’s often the end of the conversation. Am I being too demanding, or are my concerns valid?