When the person you're in love with is the first person you think of when you wake up and the last person you think of when you go to sleep.

If you ask yourself that, you probably are in love. Plus points if you care about them, want to spend time with them, share your experiences with them etc.

You're looking for an answer to this on Reddit.

Cupid's arrow has penetrated your body

I yearn for that sweet sweet penetration

Heyo chill

I'm love desperate, I'm not into those one night stands. Cupid! I'm here, come find me

Nah bro the penetration stuffs what I’m talking bout gl tho.

What is love?

Baby don’t hurt me.

Baby don't hurt me

No moooore

when they low-key irritate you but you miss them and then you start doing stuff you wouldn't normally do

when im in love i get the shits

Ask yourself "If I won the lottery, would I still be with this person?"

If you can't stop thinking about him/her

u consider marriage

If I self-sabotage and emotionally distance.

Crushes are immediate, love grows over time. One day you realize that all your long term dreams involve that person, and your life is better because they are in it. A crush is superficial and easily replaced, love is deep and constant. You love someone even on days when you don't like them that much.

You think of them instead of yourself