Gaius keeps you hidden. His precious wife, his everything, if anything happened to you, he would never recover. Every day he travels for hours outside of civilization to return to his home, to come back to you...

Yes, he does have an Esper Union to run, and he is often summoned because he's one of the founders, so it's not uncommon for him to plant you in a hotel if he knows he won't be home. As long as he can see you, feel your skin, and hear about your day when he comes home he's happy...