No? They might have had a no dating clause in their first contract (I believe it's relatively common and I'm pretty sure JYP groups have that, though I don't think there's been any hints or indications that this was something BTS had in theirs) but at this point BTS have way too much power as artists to be restricted from saying if they're dating or not. Also remember the condom picture? Lol. BigHit straight up said "yes, that's a condom in the background." I don't think they care about restricting their artists from dating. Personally, I think if any of the members are dating, they just prefer to keep it private since so much of their life is already publicized.
 
	P.S. - Quora's kind of a horrible place for accurate information lol