No, the man was right. As soon as the binding circle was gone, Solas would be leaving. There's no reason for him to stay beyond that, a human's desire to revive and prolong the life of a loved one was of no interest to him.

The leash comment does earn Strange a scowl. "It would earn you no favors." In case Strange was under the impression that tormenting and insulting the summoned 'god' was in his best interest.

His foot traces the inner line of the circle holding him and he stares at the other man expectantly. Solas did not intend to offer any leeway in negotiations.