Trust or not to trust?

I am always wondering, should we trust them or not? At the beginning you dont even know: Am I in the position to tell him that I dont like it when he is going on a snowboard vacation with the guys? Or am I even allowed to feel like this already? To feel the posessive and jealous part of myself after dating a few weeks? I just know that I dont like it! I mean yes, he deserves to have fun when I have to study all week long. I like him a lot, so of course he should enjoy himself, but I cant help it! Still there is this little evil part of myself wishing he would be trapped in his room because of a snowstorm or something like that. I always try to calm myself down in these situations, you should trust him, I tell myself. If you will go crazy in the beginning already it will be over, sooner or later. I want to start a new chapter, try something else, maybe trust a guy once in a while. But since statistically 50 % of the guys are cheating, how can we be calm when he is going to winter wonderland with all these snowbunnies hopping around him? But at the start of something new, isn´t it the hardest? You should not take it to seriously and wait what happens, if he is the right one it will  develop, but since you like him a lot, you are afraid that he might do something stupid. Especially because you dont know him that well, how can you trust a complete stranger? So how should we feel, behave or react when he tells us: Baby am going snowboarding with the guys for a few days? When we start talking to him about how we feel, that we are a bit worried, he might think we want to control him. Some guys are really sensitive when it comes to their freedom. But! If he is a good guy and someone who cares about you, he won't mind talking to you about it. That does not mean that you should confront him with your wildest dreams, in which he sleeps with every second ass that runs past him, but he should accept the fact that we don't want him to do anything stupid and that we are just, well lets face it: CARING! We just want things to go perfectly and him not to ruin it from the beginning. Maybe we just worry that much, because we like him even more than we want to admit??