one thing that i have been slapped in the face, punched in the stomach, and pulled by the hair (im being very metaphorical rn pls dont take me seriously lol) by is: if you are questioning it, LET IT GO. for me anyway, and i think for a lot of people, when a relationship is right you can feel it. you are completely sure that this is the person you want to be with and there's no questions or complications or hesitance or whatever. the fact that you don't know what you want is a huuuuge indicator that this situationship needs to 🚮. every situationship i've been in has ended so messily, because i felt like i was leading them on since i liked them- but it wasnt consistent and i kept changing my mind and questioning whether i even wanted a relationship.
you have an ideal type, which is good a lot of the time since you know what you want (of course there is no harm in keeping your options open though, because you never know who could come your way)- but it sounds to me that you don't fully like this guy enough to start anything with him. if he was the one for you, i think that you wouldn't be in this situation right now, and so i think that the best thing is for yall to stay friends probably- because leading this situationship along isn't going to end well for either of you. there are a lot of factors to consider before getting into a relationship, and if you can't see yourself talking through things, and successfully being in a relationship then i'd avoid it. hope that helps : )