Image Source: Getty / Axelle/Bauer-Griffin [1]

Ever since Halsey officially confirmed her relationship [2] with American Horror Story actor [3] Evan Peters on The Ellen DeGeneres Show this past October, we can't seem to get enough of them. I mean, their New Year's jet-ski trip [4] looked all kinds of fun, and they sure do make an epic Sonny Bono and Cher [5] (you can catch a glimpse at those costumes above).

Halsey, who released her third studio album, Manic, on Jan. 17, wished her boyfriend a happy 33rd birthday with a sweet Instagram post. The caption read, "happy birthday darling. I can't imagine a world without you in it." The black-and-white pictures she shared, which you can see ahead, appear to be taken photo-booth style.

According to Us Weekly, the two have moved in together [6]. We love their love!