Private Snapchat Story?

So my SO has a private snapchat story. I asked why he doesn't have me on it and he says because he just doesn't want me on it. Like is that a valid reason? He says he post things from partys (I'm never invited to because I "follow him around to much") and things like that but I don't believe him. Also he never goes anywhere at all unless it's a party. I've expressed how I want to go but he always says no.
Private Snapchat Story?
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