I'm a 22-year-old guy and I'm unsure about what steps to take regarding my girlfriend, who is 21.

My girlfriend and I have been experiencing a difficult time recently. Just to give you some background, we started dating in October 2023, the same month I was diagnosed with cancer. We had only known each other for a short while, but I felt an instant connection on our first date, and I was determined to be with her. She has been a tremendous support during my chemotherapy, making me feel seen, heard, and loved—an experience I've never had before. At the beginning of January, she expressed her deep unhappiness with her current situation, reiterating that it had nothing to do with me or my illness. However, she asked for a break, which I respected. For nearly a month, I received little communication other than apologies and general reassurances. After several discussions, she decided she wanted to give our relationship another try. It has now been almost a month since we've resumed things, and I can’t shake the feeling of sadness. She has been taking more time for herself, focusing on her friends and hobbies. I want to emphasize that I’m genuinely happy and proud of her for prioritizing her well-being. However, she hasn’t shared her work schedule with me in weeks, making it difficult to plan dates. She’s participating in activities I expressed an interest in sharing with her, but with others instead. Lately, she’s made little effort to involve me in her hobbies, and while she’s improved her texting, the messages are just brief updates without our usual playful banter. I don’t know what to do. If none of this is my fault, why does it feel like she’s purposely avoiding spending time with me? I’m trying to manage my anxiety, but the past two months have been incredibly tough on my mental health, and it feels like there’s nothing I can do but wait and hope. I'm at a loss for what advice I’m seeking here; I just can’t shake the feeling that when she mentioned not wanting to make the wrong decision, she was being very literal. I feel like I can’t discuss my feelings with her or anyone else, and it’s consuming me from the inside. I haven’t felt this low in months. I want to offer her the same support she provided to me during my hard times, but I’m gradually losing hope. I believe that if you love someone, you naturally want to share your life with them and make time for each other. Instead, I feel as though I’ve been quietly sidelined, only catching glimpses of the woman I care for. When we do spend time together, I’m terrified of saying or doing something wrong. What can I do? Is there anything I can do? Should I prepare for the worst? These past two months have brought nothing but unease, anxiety, and heartache. I appreciate anyone who took the time to read this lengthy post. Thank you.