Initiates but still holding herself back?

Me and my ex girlfriend have been talking a lot past 5 days... she's been initiating most of the conversations. Started sending smily faces and even a selfie (first selfie she sent me in like almost 2 months) we were talking about the dinner she was eating the other night and I said, well maybe we should eat that together sometime... said maybe I'll think about it... lol but I can't tell if she's starting to miss me or anything. She's the one who ended the relationship
Initiates but still holding herself back?
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