Do I have trust issues as she say? Or it's her actions that makes me doubt?

I know this girl for about 2 month lately she act worried when I kiss her she's afraid if I leave hickey before it was okay now she's very nervous and refuse and when I asked her why? Her reaction was obviously she's lying her face expression was lying she Said I don't want someone see it while I'm at work ! Really who will see hickey at shoulder or breast! And also she changed her nails color trice this week with different color and she wasn't reachable many times this past week. When I ask why you were not reachable she give unbelievable excuses. And I believe she manipulating me.

Do I have trust issues as she say? Or it's her actions that makes me doubt?
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