Don't know about friendship, but there's certainly a point of contention in that the US has allowed breeding the monopolies we have, without any action whatsoever by US antitrust enforcement (eg Fb/Whatsapp and Google/DoubleClick acquisition). It stands to reason that the EU must take action here in order to protect the common market. Another upcoming conflict is EU's underfinanced banks becoming easy targets after years of Draghi zero-interest ECB policies.