Why does my ex ask me this? Is he jealous?

Anonymous
Ex and I have been talking for a while. But I can’t tell if he’s Jealous or not. I’m away on holiday at the moment in and he said “you will meet people”. He keeps emphasising about me meeting people. Cause he then asked “who did you meet” when I haven’t spoken to anyone yet other than making small talk with other holiday goers. When I went out for dinner earlier he asked me if I have met any Spanish guys? Is he jealous?
Why does my ex ask me this? Is he jealous?
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