How did you know that it was "love"?

Are you in love right now? Were you in love at a certain point in time?
What was it that made you realize that what you have for this person is “love” as opposed to mere liking or infatuation?

I want to know specific incidents that happened or epiphanies that you had.

Edit (story time): I’m going to add some details actually because I realize this question is sending the wrong message. The reason I have asked this is not to figure out whether I’m in love. I asked this because for the longest time I thought I was in love with this person and then also thought that I fell out of love. And for quiet some time I was trying to let go of the relationship. But then a couple of days ago he went through some tough days and my heart was weeping for him and I wanted to make everything right so badly. So I think that made me realize I did really love him. And just because I didn’t have butterflies in my stomach all the time didn’t mean that I fell out of love with him. So I wanted to know your personal moments of epiphanies.