So about 3 weeks ago I (26M) woke up to a random text from my gf (24F) of 18 months saying she wanted to take a break and really felt like she needed to be alone for the rest of the year but also knows I dont want to take a break and said she's not sure what I want to do. This happened when everything was perfectly normal behavior the days before and no weird behavior prior. Also happened when a few weeks prior she said how amazing of a bf I was and how much she loved me and was talking about looking at engagement rings. I said we should talk in person. Don't hear anything for a few days, then she randomly texts me about a work achievement, then she shows up at my door in the evening and goes straight to my bed not saying anything. I express my feeling and she's laying there tearing up not saying anything and just goes to bed. She leaves in the morning and tells me she'll let me know how she's feeling, and I text her later that day saying I was proud of her for her achievement and would like to go celebrate when the time is right, she said no and that she will pick up her stuff later that week.
I don't hear anything for a few days again and get a random text from her again about another update. Another few days pass and I woke up one day just feeling the need to call her and have a talk about things, she doesn't answer but texts me asking what I needed and she says we're not getting back together but that she needs to get her stuff. She removed me from following her socials that day. 10 days pass with no contact and she shows up at my door to get her stuff, gets her stuff and walks out with neither of us saying much. I had left a letter in her bag just reflecting, really to get things off my mind with no intention of anything coming of it. She shows back up at my door an hour later and we talk for hours and she ends up staying over, we don't do anything though. She went in my closet and got one of my sweaters for bed, and I noticed in the morning she had a change of clothes with her in her bag, so maybe she always intended to come back and stay over? I asked her before she left if she came back just because of the letter and she said yes and that she probably won't be coming back again and then she left. Later that night she follows me back on socials.
So confusing behavior, any thoughts? It sounds like to me she can't let go and still loves spending time with me, but doesn't want to commit maybe. She has always been afraid of commitment long term.
TLDR: GF wanted to take a break saying she needs to be alone the rest of the year knowing I would not agree. This comes after everything was perfectly normal the days prior, and her even talking about engagement rings weeks before. Even though we're not together officially she is still texting me randomly every now and then. She then comes over and goes straight to bed and doesnt say anything but tearing up when I express my feelings. She then randomly shows up after 10 days of no contact to get her stuff then leaves, coming back an hour later after reading a note I left her. We talk for hours and end up watching a movie together and she stays the night with nothing physical happening.