Two days? Good grief are you desperate for attention? I've had plenty IRL relationships where we don't speak for a few days. Why would it be any different? If you're in a relationship you need to trust that person. If you can't trust that person, you don't need to be in a relationship with them.
I have trust issues in general. This would probably do me in to be honest. It doesn't take much effot to call or text when you really "care" about the person. Sounds like excusses to me.