No, he is your ex for a reason. It is normal for teen boys to be jealous. That's going to happen, however if he is overbearing then you will need to sit down and have a talk with him about that. If you love your current boyfriend, quit hurting him. That is very painful, and not something to just throw around. Only use the words break up when you actually are positively sure, and when you definitely don't want to be in a relationship with the boy any longer. I can see why he is threatening you to never talk to you again the next time you break up with him, because he is hurt from it happening so many times. This boy obviously cares about you a lot, and I don't think it is very fair that you talk to your ex via text and computer. Atleast, if he doesn't know about it. Let your current boyfriend know about the feelings you have for your ex.