How can you trust someone that you meet on İnstagram or other social media accounts?

Now i started to Speak with a guy He is good looking and we talk about daily things but when i stalk him i saw that He just follows girls. There is not any boy in his account. I think it is weird. doesn’t he have any male friends? I am suspicious that if He is real or not. What do u think? He just posts his selfies and his Body.
How can you trust someone that you meet on İnstagram or other social media accounts?
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