Photos from this Thursday night’s Valentine’s Day-themed episode of The Big Bang Theory have surfaced online, giving us a peek at love-interest-guest-stars new and old, as well as a dressed-up double date. Minor spoilers ahead.

A set of new stills has been released from “The Tangible Affection Proof,” which will air on Feb. 14 on CBS. The photos give us a glimpse of the geeky gang’s Valentine’s Day foibles, in addition to an odd shot of what we can only assume is the map to Sheldon’s heart. (Come on, you know he has one.) Check out the photos right here:

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It’s great to get our first look at Kate Micucci in her role as Lucy, a potential love interest for Raj. It’s hard to say just how they will communicate, but given that the scene takes place in Stuart’s comic book store, we’ll hazard a guess at thought-bubble. And look! Sheldon’s assistant Alex (Margo Harshman) – last seen in “The Egg Salad Equivalency” – has returned. To what purpose, we can’t be sure, but hopefully Alex won’t be attempting another proposition to Leonard.

As The Big Bang Theory‘s Valentine’s Day installment, “The Tangible Affection Proof” promises romantic highs and lows for all of its characters. CBS’ official summary says:

While the guys try to give their significant others the perfect Valentine’s Day, Raj and Stuart throw a “lonely people” party at the comic book store.

And the following week, “The Monster Isolation” will air. (The spoiler-sensitive are advised to skim over this summary!)

After a terrible date, Koothrappali vows to never leave his apartment. Meanwhile, Penny actually impresses Sheldon with her acting skills.

The Big Bang Theory airs Thursdays at 8 p.m. on CBS.

What do you anticipate for ‘The Tangible Affection Proof’?