I found my girlfriend passed out on the floor

I was at my girlfriend's house (alone). We watching a video and making out. She had to go the washroom. 15 minutes later or so I heard something crash in the bathroom. I got worried and went to the washroom. I found my gfwas pass out on the floor and vomit in the toilet. I almost called 911 when she started getting up. She said she been doing this for a month now after I told her she eating too much. Is this my fault?
I found my girlfriend passed out on the floor
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