7. “I knew you’d get mad that I’m still using something my ex got me.” – You were still using a gift from your ex-girlfriend.
“Duh! Of course I get mad. Besides, he’s missing the point.” Being defiant is probably not the best approach in this situation. If she found out that you’ve been deceitful, an apology is the best first line of defense. After that, why not joke and say, “If you could buy me a replacement, I’d love that!”