Which choice should I make?

so just to give u a quick run down, i dont usually waste my time dating or trying to meet new guys cus im just really not interested in a relationship any time soon but then i met this one guy out of no where that knew a friend of a friend and we started talking every day, hung out a couple of times, had alot of fun, then he went to europe for three months. we kept in touch and for some reason im soo interested in him even tho we’ve never even kissed. like that chemistry is just there every time we talk. so yea hes not my usual type and were complete opposites, but i get excited to talk to him, i think about him, and thats not like me at all. but heres the problem, one of my friends and her boyfriend decided to play matchmaker and introduced me to someone. we’ve gone on a couple dates, had a few hot and heavy make-out sessions but thats it. we get along great but i dont find myself that excited about him. i feel like i like him so much when im with him but when im not he almost never crosses my mind. the other guy gets back from europe in a few days and wants to take me out and is also my date for a wedding at the end of the month. but i dont know what to do cus i feel like its wrong to be seeing both at once cus obviously ill end up letting one of them down right. but i dont want to have to pick yet until i get the chance to get to know them both cus that only makes sense right. like i keep telling myself just go with the flow but it feels like the guy i met through my friend and her boyfriend is really pushing for a relationship soon and we’ve only gone on a couple dates. the guy coming back from europe is more easy going with the situation. im just confused.. this is why i usually avoid men & emotions. any advice on what to do without setting myself up for a problem in the future?

p.s i feel like im only questioning this one guy cus im waiting on the one to come back from europe. what if that doesnt work out and im waiting for something thats not going to be what i want. even tho we’ve both talked and we both feel the same way about eachother. ahh help