yes and no: convivencia was really defined by balance of power tensionsbut plenty of times without religiously motivated warfare. For instance the Taifa period between the Ummayad and Almoravid dynasties (Taifas were essentially small independent kingdoms, for instance of grenada, seville, etc.) was marked by Christian expansion but it was primarily about monetary raids and getting and keeping Muslim vassals in the rich southern part of Spain. El Cid (who when exiled spent years as a close retainer of the emir of zaragrossa and had muslim vassals) and the Tibyan (primary source written by last independent Taifa ruler of Grenada) do a nice job of showing some of this as both are set at the end of this period. Also even as the states fought each other people of both religions crossed boundaries and fought in the other side's wars (for instance even around las navas de you had christian mercenaries helping out the muslim empire's forces in battles against the berber tribes)