What does this behavior means?

So I was talking to guy for about 4-5 months and we went on a date.. he was saying he is serious about me and have real feelings for me but then one of my female friends told me that he sent a follow request to her on IG so it made me doubt his intentions.
Also we have stopped talking but he still watches my IG stories and sometimes even reply to the stories.
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I did not confront him about the follow request just distanced myself.
What does this behavior means?
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