What just happened? Need advice?

So I met this guy online last year, we got very close. But then I found out he lied about his age when I added him on snapchat. He wasn't in his 30s he had just turned 18. Long story short he played me I got mad and blocked him until I could calm down. I've unblocked him but neither one of us will contact the other. Should I just forget about him entirely?
What just happened? Need advice?
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