How about some of the following ideas for a theater-loving boyfriend:
1. Tickets to an upcoming play or musical that he would enjoy
2. Surprise him with a reservation at a fancy restaurant that's close to the theater, so that you can treat him to a romantic dinner before the show
3. A book about the history of theater or the life of a famous playwright or actor, such as William Shakespeare or Lin-Manuel Miranda
4. Collect some handwritten notes or quotes from some of your favorite plays and write them on small pieces of paper, then place them in a jar for him to randomly select throughout the year
5. A framed poster of his favorite play or musical, which he can hang up in his office or bedroom
6. A DVD or Blu-ray of a famous theater performance or behind-the-scenes documentary
7. Bring him on a behind-the-scenes tour of the theater or stage, and get a chance to see what happens behind the curtains.
I hope these suggestion helps!
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