Trying to understand discard

TLDR: If you didnt like someone and wanted to leave why would you tell them in the last two conversations that you wanted to see them, that they're lovely and that they didnt do anything/not a problem etc and that their need for space wasnt about them?

Basically a girl I was in a 3.5 month long distance situationship/casual with discarded/ blocked me on everything 2 days after our last conversation without saying anything. Keep in mind that I had treated her very well in terms of money/gifts.

The whole situationship was complicated because she had been going through hospital visits because of stomach issues and also her parents divorcing and she told me she was off her medication. She first labelled it in the earlier day as anxiety and depression then in the last conversation she said she has ocd and bpd.

She was saying in the last couple weeks that she needed space because of this. I'll admit i definitely let my anxious attachment take over by seeking reassurance but I only texted every few days during that time for a check in. I was never a high volume texter.

Anyway a week before the discard she posts a video of her and her friends in England when she was telling me she was in Ireland the whole time. I literally panicked and basically asked her is she definitely in Ireland. She wasnt happy about being doubted but basically assured me it was an old draft as she often posts drafts, however I still have doubts. She said still wants to see me once she's better basically.

Anyway the next day she reached out basically just overtly telling me everything I wanted to hear in terms of reassuring me like telling me I wasnt a problem, she likes talking to me, im lovely and she wants to see me once she feels better.

I reached out again four days later stupidly asking for more reassurance.

She once again said thst i was lovely, that the distance is nothing to do with me and its all about her medication and parents divorce etc. She literally told me to sleep well with xx and all that in the messages at the end. she mentioned that she still needed a couple weeks of space because she will be going back on her medication in the next week and her parents divorce will be over in a few days.

She also said that she needed space to not lose herself and also she said with her ocd she needs space for changes in patterns which I didn't understand what she meant about patterns.

Anyway two days later I check my snapchat and im blocked. Then realise im blocked everywhere. I'll admit that especially in the last few weeks i displayed too much emotional dependence on her which probably gave her the ick. The lack of closure from her really traumatised me. I don't understand how she couldn't have a final convo to say that she can't continue the situationship.

Any opinion on this situation would be appreciated