I (21M) sense that she (23F) is becoming a bit distant. How should I address this?

We connected online through Instagram, and despite being distant relatives, we hadn’t actually met in person. As we started texting, we discovered numerous shared interests such as music and movies. Our bond grew stronger, and I felt a deep connection with her. We exchanged memes and reels constantly, especially about a month after we began talking. Communication became a daily routine for us, with both of us showing mutual interest. About three months in, I began to sense that she had feelings for me based on our conversations and interactions, though we had never explicitly said we loved each other. One day, she shared stories about a past crush and how it ended, prompting me to ask a rather foolish question: “What are we?” At that time, I believed we were on the verge of something deeper. She responded by saying we were close friends still getting to know one another. In my attempt to express my feelings, I almost revealed that I thought I might fall in love with her. She acknowledged that we shared something special but felt it wouldn't work due to our different life paths. She was unsure of what she wanted from our relationship and wasn’t ready for anything serious because of her past trauma. I accepted her perspective but was concerned that we shouldn’t sabotage the potential of what could develop between us if we kept insisting it wouldn’t work. Following this conversation, things took a slight downturn; we still communicated daily, but I sensed a shift. Some days she seemed distant while other days she was warm and engaging. We had planned a group trip with our friends. When we finally met, she treated me like an acquaintance, which felt strange and disappointing in a social setting. However, we shared a passionate moment when we were alone on the trip. In the days following, her texting became noticeably less enthusiastic, which I sensed was deliberate. A week after our trip, she questioned whether she had been leading me on. We both acknowledged that we liked each other but weren’t ready for a relationship, and it became clear that we hadn’t clearly defined our expectations. At that point, I recognized that while there was mutual attraction, love was not in the equation for either of us. I still wanted to keep texting and spending time together as we used to. We continued our daily chats, but it fluctuated between warmth and coldness over the next few weeks, and we even made plans to meet again. In the last ten days, she has become noticeably more distant. Where she used to send me numerous reels daily, now it’s dropped to just one or two, if that. She has become less responsive and seems less interested in fostering conversation. This change has been troubling for me. I’ve tried to match her energy and act unbothered, deciding against addressing her reduced communication—though now I worry it could backfire, as she might expect me to bring it up. I suspect she might think I have deeper feelings for her, which has led to some misunderstandings about my feelings. I want to have an open conversation about where we stand, but I’m unsure how to approach this without risking further complications. I can’t tell if she’s genuinely losing interest or if her distant behavior is intentional. How should I address this shift in our communication, if at all?