Exhibit A: Lana admitted that she has a "huge crush" on Noah. She said that she had to FORCE herself to continue reading her lines so that she wouldn't get "distracted" by the actor, who we now know was Noah.
Exhibit B: Noah called Lana the "love of his life. Lana Condor, you are the love of my life — you did, we did Netflix, thank you everyone so much for the opportunity. As if the first two pieces of evidence don't prove that the romance is palpable between the two actors, then consider all of the moments captured on camera that show the chemistry between Lana and Noah.
All of the above evidence would have you believe that these two are basically planning a wedding by now, but sadly, no, they're not dating. According to an interview with Cosmopolitan, she said that her boyfriend is "very supportive" and "super chill" about her on-screen romance with Noah.