I just need advice about a guy?

So I dated this guy for awhile and he broke up with me and it really did affect me pretty bad. Took me years to get over him… 3 years later he follows me on instagram and said if I ever wanted to hang out we could meet somewhere… does this mean he still likes me? If not any advice on why he would just follow and message me out of nowhere
I just need advice about a guy?
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