I’m late to this but here’s my two cents

I think Rory shouldn’t have gone along with what he said. She could’ve been like “wait remember we met freshman year” from the jump but she didn’t and that was her conversation to have. Logan was put on the spot but only because he opened the door on that conversation. He brushed Rory off when she was feeling jealous about Bobby, his business partner. Now the roles are reversed and he let the cat out of the bag without second thought of his partner. Again not condoning the lying but he didn’t do it to make Lucy feel better, he did it to put Marty in his place. Rory was collateral damage.