Your not pathetic at all and don't let yourself think otherwise. IMO he is trying to control you by sending you those messages. He wants you to want him, Ti respond to him. He wants to know you will still be there if things go sour in his current R. Just ignore the texts, if you can do that reply saying that at his present time you are not seeing anyone but you will not be responding to this type of text anymore. He is free to think what he wants.
You will get through this.
M: 29, H: 31 D: 9 S: 8 T: 13 Y M: 9 Y ILYBIDKIILWY 12/09/2012 ~~~~ Worrying does not empty tomorrow of its troubles. ~~~ it Emptys today of its strengths