Am I overthinking how long he takes to text back?

I met this guy when travelling and he was quite obviously interested in me. We exchanged social medias and after over a week of spending time together I left to go to a different country and less than 2 hours later he had messaged me. Sometimes he replies quite quickly, other times it is hours and sometimes it is a day or slightly longer. His replies are never blunt though, although he is active on social media without replying to me. I'm only questioning this because in my last relationship my boyfriend gaslighted me by using his texting habits. He consistently told me that he wasn't a texter and tried to reassure me every time his texting habits were brought up, but when things were bad his attitude would change and I 'should have known' that this texting habits were a clear sign of his disinterest in me. I'm trying to set boundaries this time, but am unsure of if I'm being too harsh or the opposite and not having firm enough boundaries :/
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1 y
He is also still travelling by the way..
Am I overthinking how long he takes to text back?
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