Trust question

I just learned that after over 2 years with my dom (fwb, in person), he’s been using a Google number with me this whole time. I used one when we first met, but after a certain point, I gave him my real number and explained why I had used the Google number. He didn’t comment at the time about using one himself, so I never questioned it. He said he wouldn’t give out his real number for non personal life connections.

I get the privacy issue, but I’m kind of struggling with the fact that I clearly trusted him more than he trusted me. I feel like trust is a two way street, and how can I trust him as I have during sessions if he can’t even trust me enough to have his actual number after all this time. I don’t want this to affect our dynamic, but I’m concerned that it might affect the level of trust I have during our sessions. Has anyone dealt with this or does anyone have advice? Is this normal, and just something to overlook? He’s my first dom, and has introduced me to the lifestyle. We have a friendship too, and we’ve built up this trust for so long and so deeply (I thought), that I guess I’m a little disappointed/hurt to realize that it was a bit one sided, and to know that I’m expected to trust him during sessions with my health and well being, when his level of trust for me feels so superficial now. Or am I overreacting? If he’d waited until a certain time in the dynamic, like I did, I would have understood. Or if he’d told me when I came clean about using a Google nicer to him, and made it clear that hewould continue to do so, I don’t think it would’ve thrown me off so much. But after so much time and how intense the dynamic has been, I feel confused and disappointed. Any advice would be appreciated!