My sister-in-law let slip that her and her boyfriend sometimes refer to me as a gross skin condition because it sounds similar to my name. I actually changed my name to that voluntarily because of negative connotations with my birth name. She's actually a therapist so I was shocked she even told me this. AIBU that this bothers me? It feels mocking and mean spirited and I feel they've been laughing at me behind my back. I do wish she'd just not told me - they could have had their fun and I'd never know.