So what makes us think so? Well, Romeo is lurking on Millie's Instagram pics, leaving LOVE HEART emoji comments on her fire selfies.
Ohhh my god, we ship. We ship it so hard.
To be fair, Millie has been very into Romeo for years. When Millie was 12-years-old, she told E! that she wanted her character Eleven to end up with little Becks.
Then, in 2017 Romeo commented on one of Millie's photos and she FREAKED OUT:
Make it happen kids.
Watch below... Millie Bobby Brown often texts rapper Drake: