Boyfriend of 5 years broke it off and we had no arguments prior to this?

So my boyfriend of 5 years was ignoring my calls for like 5 days and i text him asking him whats happening and he ignored. Then I sent him a message asking him if he is having second thoughts and a day after he replied saying yes its over. We spent time together prior to that, we didn't have any arguments or anything. I then replied to him saying that he must have been thinking about a long time then. He ignored. What do i do now?

Boyfriend of 5 years broke it off and we had no arguments prior to this?
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