Take it as offence if you wish, but that's the very definition of harrasment.
You constantly messaged her over and over again from what it looks like, and she didn't reply. She didn't reply for a while, what does this mean? You're probably getting on her nerves. If you're getting ignored continuously, that's a more polite way of saying "Fuck off you're annoying me", which you probably were.
Correct me if I'm wrong, but you do this to a lot of people and you seem to enjoy disrespecting people too. Don't be surprised when people shut you out for your stupid mistakes.
This is harrasment, and bad harrasment at that. Leave people alone if they're obviously annoyed with you.
And you admit to spamming your girlfriend too, here is how much you spammed her.
There's probably over 1000 characters worth of spam there in around 4 weeks. This, Sammie, will push her far, far away from you. Stop spamming, no one likes it, no one finds it funny, it makes you look like a creep. Chill the fuck out dude.