Looking through the hand, I thought you would call after utg called. You raise and get all in. All in went either with a pair or with A. Utg called either with a shallow pair or with KQ A ss A7 8 9 10 Aj then decided to fold. The aggressor player turned out to be with a hand that was not strong enough and gave almost equal chances against you. Against him, the utg hand was stronger in half the cases or had equal chances. Even with utg, it is profitable to play with jj through a call. Therefore, it was dangerous for him to play so aggressively with this hand. KJ is a fairly weak hand at this stage if you choose an aggressive strategy. The player who initiated all in was also with a weak hand against raising from you and calling with utg.