Is this normal behavior in a relationship?

I get so excited to talk to my girl every night and through the day I'm like a giddy little school girl. When we talk on the phone it's for hours and hours AND we are laughing for like 80-90 % of the time. I mean guttural laughs even. 2 nights ago we were on the phone for almost 7 hours and each night we talk we only force ourselves to stop because of work and crap in the morning. I honestly don't know of other guys doing this with their gfs. Is this unique and what do ladies think? XD
Is this normal behavior in a relationship?
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