Most of the time it is good to seek advice because people, friends and family tend to see clearly about a relationship than those in it.
Here is my piece
He deleted you maybe because he still angry and just need space
2. Give him time and then maybe contact him
3. You contact him
4. It is still fresh. Valentine or not. Give him space. Dont contact him. You both need time to think alot of things out.
5. He might be really angry about alot of things. (built up pain and annoyance).