Unless I have gone full retard, the dividend is irrelevant for those LONG calls.
Only those who are SHORT calls where the same strike+expiry put is worth LESS than the dividend will see their short calls exercised.
Being long, you should early exercise your calls if the corresponding puts are worth less than the divy, otherwise you are leaving money on the table. Fees, etc should be considered as well.
Net-net, you hold the decision being LONG the call. Nothing can happen if you do not request it to happen.
Again, I may be off today, it's been hectic, but I believe you are fine to hold if your reason for holding is still valid.
masterjaz