<human>: * I am not sure I would describe it as jealousy, but my boyfriend gets uncomfortable if I mention, "Oh, an ex and I have been there" or "I know that song because of an ex". I don't even mention names, just "an ex" to keep it generic. 
* I just moved and am keeping a few boxes at his place. I have things from exs that I kept because they were good memories. Ex: An Olde Time photo (where I look super hot I might add), a picture at the Empire State Building on St. Paddys, dog tag (only because I forgot to send them back), and a teddy bear I didn't have the heart to throw out. My SO found this box and got upset. He didn't directly tell me to, but it essentially was "I'm not going to tell you what to do, but I would feel more comfortable if these things didn't exist." We compromised and most of it is thrown out now. I care more about my new relationship than the stuff. 
* Now, I've kept notes passed to boyfriends since middle school (still have those somewhere), I just keep things from "old friends". I view these as good memories with good friends. Even if we are not on good terms anymore. 
* I don't get it. I broke up with all of my exs, it's not like I want to get back with them. I would not care if he went into a long winded story about his ex, or still had a Tshirt from one that he still wore. Am I alone in this? 
* I feel like it's unfair that I have to "hide" (Read: never mention) parts of my past because they were tied with another person.

Can you condense the text into three sentences or less?
<bot>: Should I never mention things having to do with an ex to my SO? Or is it unfair if him to guilt me for it?