Warning: This article contains spoilers for Wednesday’s episode ofThe Challenge: Spies, Lies and Allies.

Rough waves and a rocky cave wall spelled disaster forTommy SheehanonThe Challenge: Spies, Lies and Allies.

“It’s tough to go out that way,” Sheehan tells EW.

the challenge

‘The Challenge: Spies, Lies and Allies’.mtv

Could I have potentially won?

It was out of my hands.

ENTERTAINMENT WEEKLY: What do you remember from that challenge?

the challenge

‘The Challenge: Spies, Lies and Allies’.mtv

She was right on my tail.

And then after that it kind of went blank.

I don’t remember going on the jet ski, I don’t remember swimming back.

the challenge

‘The Challenge: Spies, Lies and Allies’.mtv

But she was like, “No, Tommy, we finished and we beat CT and Berna.”

So I’m proud of myself.

That’s something that I can even show my future kids and my future grandkids.

[Laughs] It was something that I will definitely not remember, but also remember forever.

How did you feel after finishing the challenge?

I’ve never had an injury in my life, never broken a bone.

I had no memory, and right then and there I was like, that’s a telltale sign.

So I knew I needed to get it checked out.

Did you go to the hospital as soon as the challenge ended?

After the challenge ended, the doctors there hooked me up to IVs because I kept throwing up.

I was extremely weak, but I said I was fine.

I went back to where everyone else was cheering, and I felt like I was on a merry-go-round.

I couldn’t really even stand in one spot, I was so dizzy.

I had to sit.

The producers there took such good care of me.

So they pulled me to go get it checked out, and that’s where you see my downfall.

What was your reaction when you learned you had a concussion?

I knew I couldn’t stay.

There was an elimination that night, and imagine if it was a Hall Brawl or something like that.

And now it was all over.

Which goodbye was the hardest for you?

She also got injured [during this challenge] she got stitches in her nose.

I was surprised at how well Big T and “Little T” was working as a duo.

It was such an odd pairing but it really worked.

We would get on the treadmill every morning and run together, and she was working on it.

Big T, she is someone that I’ll hold in my heart forever.

I talk to her daily.

So if you had gone into an elimination and won, would you have stayed with Big T?

No matter when, I was picking Big T again.

InDouble Agents, she got the short end of the straw.

But she is extremely underrated.

She’s smart, a great swimmer, and strong.

In yourEWSurvivorQuarantine Questionnaire, you said you were retiring from reality TV.

What brought you to that decision?

Absolutely not.SurvivorandThe Challengeboth were amazing experiences.

I don’t want to be the guy that just waits by the phone for the next call.

I just got an assistant principal job, I got my dream job of running a school.

I want to help children, especially with special needs.

I couldn’t pass that up and I can’t keep leaving.

It’s time for me to hang it up.

I love my life and I’m done leaving it.

Did you ever consider doing another season ofSurvivororThe Challengebefore you made that decision?

I said, “I’m a one-and-done.”

I was going to doSurvivorand never play again.

Even when I won, I was like, “No, I’m done.”

But thenThe Challengehooked me up, and I was a fan ofThe Challengeforever.

This was always the plan.

Before I left, I said, “This is my last go-around.

I don’t care even if I win or come in last.”

Which was harder to come back from with regard to adjusting to your real life?

I can move on very fast.

I just was like, “Does everyone want to come over and party?

Can I go back to work?”

Everyone thought I was nuts.

I won a million dollars, and the next day I went right back to teaching.

Afterthat first elimination, how is your relationship with Michaela [Bradshaw] now?

But Michaela and I just never saw eye-to-eye.

Everyone was like, “You betrayed her.”

I didn’t trust her, and then she came out and said she didn’t trust me.

Of course when you don’t trust someone, you’ve got to get rid of them.

How is your health now after your concussion?

Did you ever find your shorts?

[Laughs] My shorts from that challenge are, I guess, now with the fishes.

When I came to I was like, why the hell am I naked?!

It is so much fun now to laugh about it.

My cast members and all my friends always rip on me about it.