How should I have taken this behavior?

I have a small company, maybe the most I have employed is six people at once. I had one employee that had expressed on one occasion that I wasn’t doing enough for him, we seemed to smooth things out but then a couple months later, one day out of the blue he brings in four boxes of approximately three feet by one and a half foot by about one and a half foot high.

I dealt with it for a day and started to joke with him about the boxes, “hey you moving out”, his response no, just getting some of my personal stuff out of my office. He did have some home school educational materials in the office, but not four boxes worth. He let them sit in his office for three weeks. I confronted him and he said I was paranoid because he gave me his word that they were to move some personal stuff out. Told me I had trust issues. I told him his behavior was obtuse and to get the boxes out.

I stand behind my opinions on this but would like to hear a multitude of opinions.