I haven't heard from my closest friend for over four weeks. That's very unusual for us, the only other time it's happened was when I'd behaved wrongly and she needed the time to come to terms with it. That was over two and a half years ago. Usually we message most days, if not every day.
She has had depression for several years and has been really struggling since about January. I've gone out of my way to help her and be there for her, especially as she had been living alone a few hours away from home. Since about April contact with her had become more sporadic, I'd message her and she'd reply maybe 3 or 4 days later. Before I left to go on holiday in June she promised me she'd be in contact (that was out of her own volition, I hadn't even mentioned it to her) but I haven't heard anything since.
She's been online, so she's okay, but I can't decide whether to be worried or hurt or both. I just don't understand why she wouldn't reply to at least let me know that she's not up to talking right now. She knows I'd be worried, and it's just hurtful that I've sacrificed so much to help her, and she brought me in so close by telling me what she was going through, and now there's nothing. Part of me is expecting that when she eventually does reply, she'll really need me again. Which I wouldn't mind at all, but I can't help feeling a bit used. AIBU?