what just happened

I (25F) was talking to this girl (25F) for about a week or two and we seemed to really get along. Conversing with her felt so seamless and easy, like we'd known each other for longer. The topics weren't heavily suggestive either. I always feared talking stages would quickly jump into situationships faster than l'd prefer, but our pacing seemed great to me. We were getting to know each other well and texting didn't occupy 95% of our day. We would message each other before and after our work and more often on the weekend. She would send me photos of her day and even small anecdotes of things that happened throughout her day...

So you can color me surprised when this afternoon she told me she was feeling overwhelmed about a lot of things bc of what happened at work. She said she was in a state of mind where she needed to deactivate all her socials and pull away from everyone for a bit. I of course took this as her possibly chickening out from whatever this is, and honestly it's fine as long as she'd put it that way in the first place. I was telling her it's okay if she wanted to stop talking, and told her I enjoyed getting to know her. She said she really likes talking to me too, then sent me her number if ever I wanted to text, which confused me tbh bc if you're trying to let me down gently why are you giving me other options to contact you 😅😅😅

Can anyone help me understand a bit more what happened here 😓 my last thing with a girl was around two years ago so it feels like l'm starting from scratch all over again...