No offense man, but your girlfriend always thought you were small. It’s why she even brought up the idea of using a penis extender. She probably wished you were bigger for the longest time, and it’s why she casually introduced the idea of toys in the first place.

Objectively, you probably aren’t small. Most men are average, which is like 5.5 inches and up. Porn makes this misconception that bigger is better, when in reality, big penises are not the norm. Most women can’t even handle a big penis anyways. HOWEVER, some women do prefer a bigger penis, and once they are used to a certain size, only that size will satisfy them.

Tbh, I don’t see this getting better. There’s nothing wrong with you and there’s nothing wrong with being average. You can choose to continue using the extender, and swallow your pride, but you will also sacrifice your own sexual pleasure in the process. Not worth it. Or you can talk to your girlfriend about how you feel, but eventually she’ll resent you for her not being sexually satisfied. You could also try compromising. Goodluck.