@efasdae,
Oh FFS, you've only been dating a few months.
Instead of playing cloak and dagger, and since he's not giving you any straight answers, tell him you want answers or you're walking. And back up the threat.
I am not big on ultimatums but you have invested nearly no time in this person. I bet you will end up cutting your ties with him, but give him a chance to explain (if he can) and for God's sake don't get caught up in thinking that spying is okay or at all productive.