HOLLA ON THE GO: Coworker stalked me

I friended Q from work and accidentally trusted him enough to show him where I live. I thought he was harmless but then he started showing up without an invite. He started asking me questions about other men I was seeing. I started to question my friendship with Q. He sent text messages with odd requests. He started saying sexual things out of context to me. I was afraid I would be a victim of date rape. Stay clear of Q. And keep him away from your children. He gives me the creeps.