WHY WOULD A MAN WALK OUT OF A RELATIONSHIP ?

I want to know your thoughts on this story below:

Good evening ma'am. How are you and family? My guy and l have been talking on phone for close to 11months, he has visited me twice, logged in a hotel and I went to meet him. So last week, he booked a ticket for me to come see where he stays. He picked me up at the airport because he is on leave for two weeks. We got to the house. The next day, he woke up, woke me up by 7am, we prayed and I went back to bed. He cleaned, cooked breakfast and we ate. The second day, he cooked jollof rice very early and woke me up to eat, he cooks very well. Our lunch and dinner, we had them outside

So the third day, I woke up before him. Went to the kitchen, made breakfast and ate. I didn't do his because he was asleep. It's just egg and indomie, it will get cold . He woke up, came where I was watching the television and asked if I have eaten breakfast because he saw dirty plates at the sink? I said yes. He asked if helped him clean the house, I said no. He swept his house, took his bath and left with his car keys. The fourth day was Sunday. I woke up by 8am and I didn't see him. He dropped a note for me " I have transferred 40k to your account, the taxi that will drop you off at the airport will be there by 2pm because he booked to and fro ticket for me. At the end of the note,he wrote "Take care and enjoy your life" leave my keys with the gateman".

Since last Sunday till now, he is not picking my calls, not responding to my messages. He is not responding to my Facebook messages , WhatsApp and everywhere. His silence is killing me ma. I love him, I don't know what I have done to him? Is this how people break relationships without telling each other what they did that is wrong ? I am ready to make amends ma. He promised me that he will never leave me. He is 32 years and I am 28 years...