There were those in Pergamum who put a stumbling block before these believers, just like Balaam did before the sons of Israel. This instruction seems to be all about relationship, or better said, unauthorized relationships, those not established by the Father. Instead of encouraging the people to wait on Yahweh Adonai and Yahweh Raahto provide relationship in His timing, they gave them reasons they could take what they needed now.
As we eat the things sacrificed to idols, the next step is to “commit immorality”. Once a person gives themselves to another in deep desirous intimacy, and that other person becomes their answer, their provision, their satisfaction, the one with whom they cannot live without, from a spiritual perspective, they have started to “commit immorality”.
Waiting on God to be our source of provision, especially for love and intimacy, is one of the hardest things there is to do. Thus, idolatry and committing acts of immorality are rooted in dissatisfaction, being disappointed with the way Yahweh Raah is leading our life.