Halloween is one of the best days of the year for couples. Not only can you hard launch your relationship on Instagram with a sexy couple's costume, but you can also learn a little bit more about your partner based on their Halloween costume preferences.

Do they prefer a cheap DIY couple's Halloween costume, or do they opt for a funny Halloween costume? Do they spend months leading up to the Oct. 31 holiday thinking about their costume, or do they come up with a last-minute couple's costume idea the day before? Whatever their answers are, this is all amazing intel into what your future could look like with this person — even beyond Halloween.

But learning more about your partner doesn't just stop there. Turns out, there could be some actual psychology behind what your couple's Halloween costume says about your relationship.