Could there be trouble for Sheldon and Amy?

On The Big Bang Theory Season 10 Episode 24, the gang worries when Sheldon's former admirer, Ramona, returns while Amy is away at Princeton for her research fellowship.

Take a look at the photos below for a preview of the Season 10 finale, "The Long Distance Dissonance," airing Thursday, May 11th at 8/7c on CBS.

Need a refresher? You can always watch The Big Bang Theory online right here via TV Fanatic.

1. Ramona and Sheldon Have Lunch - The Big Bang Theory Season 10 Episode 24

Ramona and Sheldon have lunch together at work, and they sure seem to be getting along well. The rest of the gang is worried about this (and so are we)!

2. Sheldon's Admirer Returns - The Big Bang Theory Season 10 Episode 24

Sheldon's former admirer, Dr. Ramona Nowitzki (Riki Lindhome), resurfaces while Amy is away at Princeton. She's even bringing Sheldon lunch...

3. On His Own - The Big Bang Theory Season 10 Episode 24

Sheldon is on his own for a few months while Amy is away at Princeton.

4. Howard and Raj Buy Comic Books - The Big Bang Theory Season 10 Episode 24

Howard and Raj talk while looking through comic books. All of the guys are worried about Sheldon's new friendship on The Big Bang Theory Season 10 Episode 24.

5. Penny and Bernadette Skype with Amy - The Big Bang Theory Season 10 Episode 24

Penny and Bernadette Skype over the computer with Amy while she's away for the summer. Hopefully, Amy is enjoying her trip!

6. Sheldon and Ramona - The Big Bang Theory Season 10 Episode 24

Sheldon and Ramona spend some time together at the apartment. Seriously, should we be worried about this?

7. Sheldon Loves to Be Admired - The Big Bang Theory Season 10 Episode 24

If there's anyone who would thrive on having an admirer, it's Sheldon Cooper. But this one could be trouble.

8. Howard and Sheldon are Concerned - The Big Bang Theory Season 10 Episode 24

Howard and Sheldon seem rightfully concerned that Sheldon is getting along with Ramona so well while Amy is gone.

9. Stuart Might Have Some Concerns of His Own - The Big Bang Theory Season 10 Episode 24

Chances are, Stuart is interested in Ramona himself. That would certainly be better than Sheldon, after all.

10. Please Don't Do This, Sheldon! - The Big Bang Theory Season 10 Episode 24

Oh, Sheldon. Please don't mess up things with Amy while she's gone. Everything was going so well for the two of you lately!

11. She's in Amy's Spot... - The Big Bang Theory Season 10 Episode 24

Ramona hangs out with the gang at the apartment. Is she actually trying to replace Amy? Or is she just going to be a nice addition to this group of friends?

12. Penny isn't Happy - The Big Bang Theory Season 10 Episode 24

Penny doesn't seem happy with Ramona's presence at all, and who can blame her? She and Leonard, along with everyone else, are very worried right now.

13. Penny Gives Sheldon Advice - The Big Bang Theory Season 10 Episode 24

Penny has a talk with Sheldon, most likely about his new relationship with Ramona and how that could affect things with Amy. Talk some sense into him, Penny!