Poll: why would a guy deactivate his facebook account?

[No Name]

I was dating this guy and we broke up and he then deactivated his Facebook account? I checked with logging into my friends account and his likes are still visible but clicking them shows it blank? I want to understand why he did this and why not just put his profile on private and block me? I haven't contact him since a week. I have a crazy thought he did this so he can appear back on my friends list with out removing himself but who knows.? Any idea would be appreciated thank you