I Have a Question

there is this guy on fb ive been talking to for a while, he wants to fly my mom & i out too meet him or he is willing to visit, every time i ask too see his pic he refuses to show it and blames his phone, i know its all red flags but should i trust him enough to talk to him still ? even if he does visit should i go visit him with friends ? chances are he mightn't even if he lives in the next town, i doubt, but should i continue talking to him ?