Is My Tort Feeling Lonely?

Yeah I agree with Tom. I let bogart outside on a fairly hot day and he was running the fastest I've ever see him run! I thought he was just enjoying himself but then I felt like something was wrong so I put him inside and looked it up. I guess whatever the temp is outside the ground is much much hotter. Bogart was running around because it was way too hot and he was trying to escape the heat. Please be careful when letting your tort play outside. If he doesn't seem relaxed then something is probably up.

Seems to me, if he was nervous, he would run for shelter, not just run around. He would look around for the most promising dark nook or nearest facsimile thereof, and run for it and HIDE or try to.
I don't think he would be running "around" unless he was having trouble finding a hidey-hole.

What if he is burning his feet while he is out and then when he comes home he retreats because he hurts?

Hello, Gillian, Oli isn't getting lonely.
They simply don't, and that is a known fact and not just guesswork.
Greeks don't like other tortoises being around them, they are happier alone.
Anyway, Oli has Tidgy in an internet relationship, which is really ideal for a tortoise, no threat to territory, basking spot, food etc, just perfect.