Sorry, another keylogger question.

I’m sure you guys have answered this numerous times, but please, one more time for me.
The computer we use here at home is a laptop that my bf purchased (we live together) and everything is in his name and under his passwords. Even though there’s nothing I don’t have access to, I’m wondering if he could’ve installed a keylogger while still using norton as our security? And if so, is it possible for me to find out? How?
I normally wouldn’t care, but I just joined a forum that discusses very deep emotional topics and am able to vent in there, among other benefits of an almost therapudic like site. I’d hate for him to be reading topics I feel I’m expressing in secret. I love how the site gives me the confidence to express my thoughts and emotions as if I were speaking to a therapist, but haven’t been able to fully do so with this lingering in my mind. This is a huge invasion of privacy for me and need to know if I can go about my venting comfortably.
Any advice on how to check will be greatly appreciated.
Thanks a bunch for taking the time :slight_smile:
Fabi~