Girls, what does it mean when a girl is dry in replies but reciprocates and also sends pictures of what’s she’s doing at the moment out of the blue?

I’ve had a vacation fling overseas and can’t tell if I’m overthinking or coping. She’s speaks a different language so we both translate to conversate yet her replies are dry. We chat every 2-3 days, I tend to initiate conversation 75% of the time which I do not know if it’s cause she’s not interested or she knows I’ll start the convo, yet she’ll send me pictures of her with her girlfriends or whatever food she’s eating via What’sApp out of the blue

Girls, what does it mean when a girl is dry in replies but reciprocates and also sends pictures of what’s she’s doing at the moment out of the blue?
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