If you've ever been in love, there might have been a time when you began to wonder if your significant other is someone worthy of that lifetime commitment. You know, the one that involves walking down the aisle.

Many of us may hope the answer lies somewhere in the pages of Cosmo, where readers often seek advice about deal breakers or try to find secret signs in the way their partner answers certain questions, but there are deeper reasons that may suggest you're with the person you should marry. There's actually a lot of science at play.

Of course not everyone wants to get married, and no one in a long-term relationship should ever feel pressured to tie the knot. But if you are the marrying kind, here's what the experts suggest you look for.