Orthodoxy and Catholicism are essentially one in those matters of faith which are necessary for salvation, it is we the individuals who make mountains out of moll hills, such as the Filique and some other trivial issues which could easily be resolved (Especially by fostering an attitude of friendship and mutual respect for one another).
Over the course of the years I have been privileged to walk and talk with people of both Churches and benefited by attending both the DL and the Catholic Mass. I can vouch that, among cradle Orthodox there is a true attitude of respect for RC's (I've been told numerous times by Orthodox faithful that the Catholic Church was the "same religion" as theirs). It seems like a lot of this recent, anti ecumenical trouble has been stirred up in Orthodoxy by 1. Hyper Slavic and Russian nationalist who seek to cause trouble and provoke hostility amongst eachother and use religion as a weapon to do so (This is especially true in regions like the Balkans and is sadly practiced by both RC's as well as OC's).
2. By the influx of Protestant converts to Orthodoxy, especially in the U.S. who take their extreme anti Catholic rhetoric with them. These "Ortho-Prots" cause more harm then good because, by hating and causing friction between Churches based on their own prejudices, they prevent the atmosphere of Ecumenical progress that's necessary for genuine dialogue and eventual reunion between the Churches.
These two groups the ultra slavophile nationalist on one hand and the Protestant converts on the other are chipping away at true union, but the Holy Spirit will have the last laugh by thwarting them all and producing a genuine reunion of the One, Holy, Catholic, and Apostolic Church of Christ.