Iiii don't know about that. I was definitely gonna have Lavi avoid Conrad for being a dumbass and getting himself into trouble which dragged Lavi into the mess... but staying away from his other friends is kinda ehhh. After all, Lavi's a pro at acting and he wouldn't want to trouble his pals by being mopey. If anything, I think there would be a greater chance of Lavi sticking with them and hanging around 'em more than his buds at Marina if only because Allen, Lenalee, etc. are people he actually trusts and baaw why did I let these emotions control meee.
BUT he would be feeling a bit ashamed for doing something so reckless and there's no telling if his friends'll forgive him any time soon since after all! Lavi did go in alone when Allen made him promise to be careful. ):
ALL IN ALL he'll probably be working on saying sorry to them instead of keeping away.