Hello Archon. Of course, the 155 level will attack you, not because you dared to hit his emporium, but because he or she has an interesting target that might give him/her easy PVP, and of course to punish the player, not to do it again. I don't know what walls and city bonus you have, but if you haven't, it is better to focus on upgrading your Acropolis, so your newborns units will be safe. Your offensive units have to be on the max agreements and all of your defensive units should be in Acropolis, and let him come. Take them everything, give them nothing. Kill anyone's units at Emporia. It is a wargame after all. If you are lucky, someone will besiege you so, you can play as normal under his protection. Maybe it is a weird way of playing, but if you cannot face someone 1vs 1, you do an unorthodox war, meaning, a guerilla war. If you want to avoid predators, you should start to think like a predator.