What does it mean if you make a girl cry?

It was a couple of weeks ago in my acting class. We had to get a partner and do an exercise about relationships and we had to pretend to be bf/gf. The professor told us to give each other some candy and then touch each other (not inappropriately) so I started to give her a back massage, then I kneeled and held her hand. The teacher asked how she felt and she had tears in her eyes and said and I quote "he's being gentle with me, but at the same he's making me feel comfortable. I said a few things i thought a boyfriend should say and she said that I made her feel special.
It was her turn to do the same and you're suppose to give one candy but she didn't give me just one, but four. At the end of class I was walking to my car and she came up to me and said "it's nice meeting you" and we started getting to know each other. The only downside is that she has a boyfriend already... But it's a long distance relationship.
What does it mean if you make a girl cry?
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