I am of the belief that you did not process the guilt for taking that relationship (over text) too far. It is easier for you to accuse BF of something similar than to come to terms (entirely by yourself) with why you had that other relationship. I am not talking about forgiving self, but of analyzing the whys. Was something missing in this relationship that made you want to develop another? Are things not looking good now for that reason, or for another? Try to invest considerable time into analyzing that relationship which you cut short to take the lessons learned. Try to understand what was going on in your subconscious, because once things are transparent TO YOU, they are no longer frightening, or threatening.