I met a girl back mid-October and we really hit it off. She was great, we had fun, she seemed really even keeled. We talked easily. Everything felt smooth. I was seeing her 3 or 4 times a week. She'd stay the night fairly often. Things were good. We claimed the boyfriend/girlfriend status the week before Christmas. She left out of state to visit her family and came back the next week. We spent the entire week together since we had time off from work. After that, she stayed the night every night and was there when I got home from work every day until my mom came to stay end of January, during which time she did not stay over.

It was around this time it started to sink in that she had basically moved in, despite her bringing up the idea of moving in together and me saying, "Well, you’re under contract from your apartment until July, let’s wait until then and see what happens"
I am somewhat of an introvert and having time alone from time to time is necessary.
I started to act more distant and not be as enthused about her trying to seduce me every 3rd minute of the day.
One Friday night, I had a bunch of my buddies over with intent to hang out until the wee hours of the morning and I suggested she stay at her apartment because we may be loud. She did but she came over at 7:00 that next morning. She was omnipresent.

I knew I had to bring it up and tell her that we need to cut back a bit. However, Valentine's day was that week and the following week we had plans and tickets to fly out of state and go on vacation with her best friend and her friend's boyfriend. I decided to wait until after these events to break this news because I didn't want them to be soured.
These events came and went and this last Friday after work, she came home and I listened to her discuss a situation at work for a solid hour and then it was time. I explained that I loved her and loved spending time with her but that her moving in was a bit too much too soon, we had only known each other about 4 months. I explained hat I am an introvert and that part of my being less engaged at times was due to me not getting enough personal time. I said that for a while we should cut back to about 3 or 4 days a week so we can have time to ourselves and to be with our other friends and family. I told I did not intend to break up, I just think we should ease into things a little more gradually.
Now, I expected her to be a little unhappy, yes but the response has been, I feel, way over the top.

For an hour she sat and cried, like wailing cries, as I tried to get her to just talk to me and I restated my intentions of it being a need for myself and not an attack or criticism of her. That was followed by her storming around my house getting every single item of hers and shoving it into bags. After 3 hours and 5 full sized garbage bags later, she left. As she left I told her I would like to take her to dinner and see Zootopia the next day. She said she was not sure if she would feel up to it. I said that I understood and that she should just let me know and we would figure a time out once she told me whether she was up to it or not.
All the rest of the night she texted me that she was drinking (which she never does) and crying alone. The next morning she told me she had not stopped crying all night. I re-iterated that I was not breaking up and that I was still there for her and still planned to be. I went to my friend's son's Birthday party and while there I sent her a text describing something cute he did to try to break tension. She gave no response.

Around 4 PM, she sends me a text asking what the plan was. I told her we could still go out if she felt up to it. She responded that she was "pissed" because she was waiting around for me to come pick her up. I reminded her that I asked her to tell me if she felt up to it and we would plan something. I did not know she was waiting because she never told me and she was not responding to my other texts so I was just giving her time. I tried again multiple times to explain where I am coming from. Every time I try to tell her my thought process, she only responds with "OK". She got more upset and said she did not want to go out, she was just going to get junk food and more alcohol and stay home sad. I again asked to take her out instead and she just said she did not want to talk to me anymore at that moment.

Around midnight last night I was about to hit the hay and I just texted her a good night. I got no response. I went to bed. My phone rings at 1:00 AM and wakes me up. In my sleepy daze, I drop the phone under the bed and do not pick it up in time. It was her. I call her back immediately. She doesn't answer. I texted her asking if she intended to call me. No response. I go back to bed.
I wake up with 4 text messages 2:30 AM "Yes, I was going to try to talk to you" 3:30 AM "I can't sleep" 4:15 "Still can't sleep" 4:45 AM "Must be nice sleeping". By then it's 8:00 AM, I sent her a text saying I am sorry I missed the call but I called her right back. I told her it was a bummer that she could not sleep. She just responded "OK"

At this point, I feel like her response to the whole thing is terrifying. One thing happens and she resorts to silent treatment, self-destructive behavior and guilt tactics. I had not intended to break it off with her but this makes me feel like I should. Especially if she is going to try to make me feel guilty every time I want much needed time to myself.
This is reasonable, right? I am not being too rash, am I?