Hello, and welcome to PPG.
Well! Looks like you're romancing Anomen now, indeed. Your only way(besides reloading) is opening a console(if you don't know how, read our pinned topics in BG2 gaming forum) and type
CLUAConsole:SetGlobal("AnomenRomanceActive","GLOBAL",3) - and then talk to Xan.
But a) think twice before doing it: there may be an unpleasant surprise in Spellhold, later;
b) I would do the same in your place, because the unbonded path lasts until the end of ToB, and there are many talks ahead.