Why would he suddenly ghost me after 5 months of intense dating?

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+1 y
We were talking since January this year, we had been on about 12 dates, he very early on said he was falling for me, he said he liked me a lot, he always paid for expensive meals even though he had a basic job, I always tried to offer but he always stood there and told me no, I always said thank you, I went up to London every week to see him which was about 1.5 hours and stayed there all day until 11pm and so we both did our bit to show appreciation for each other which was lovely
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+1 y
We used to face time everyday for hours, we spoke on the phone and text every day, he always used to text me good morning, he used to say wake up, that was his thing everyday haha, he used to buy me little things in London like little trinklets which was so thoughtful, I had come out of my 7 year relationship soon before I started talking to him, it was a domestically abusive relationship and it’s affected me and I noticed he had become a little bit withdrawn I think maybe to do with his course…
Why would he suddenly ghost me after 5 months of intense dating?
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