Confused and Ashamed

I recently ended a long-term relationship and am trying to figure out who I am as a single person again. There's this guy online who understands my kinks, which include some DDLG stuff that makes me feel like I'm back in school. We've been talking for weeks now and it feels so good to share these fantasies with someone who gets them. But the more we talk, the more real it all seems, even though he's a stranger. Last night, we agreed to an age-play session where I pretended to be his younger sister, he called me 'little sis' and everything, and it felt incredibly intense. We didn't do anything physical; mostly just talking, but it was like our connection went up tenfold. Now, here's the thing: I'm worried people will judge me for this. Is it normal to feel such a deep emotional bond with someone from an age-play scenario? Should I even be doing this? Am I completely crazy or is there something healthy about exploring these kinds of relationships after a breakup?