Is it normal to cry tears of joy like my girlfriend and I did?

My girlfriend and I were on Skype chat and it was late and we started talking over a soft topic of hers because she had been called a slut by everyone and she's very nervous about the whole situation at school with everyone making fun of her for the past, and so I wrote paragraphs of really loving and nice things that you only find in love, and she just started tearing up and crying and we shifted away from the slut topic because we were so occupied in eachothers loving company and so we just started crying together on Skype chat! Is that weird, or is that normal? We are eachothers first love and proper relationship and I thoughroughly enjoyed the whole experience it just made us so close and really happy to be together... possibly can anyone share similar experiences...
Is it normal to cry tears of joy like my girlfriend and I did?
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