Andrew would only wake Angela once everything had settled, more than five hundred years later. Yes, he had no intention of traveling through time again. He planned to spend those five hundred-plus years in the past with her.
The difference was that Andrew would remain awake, while Angela would be "asleep" the entire time.
Why wait until everything had settled to wake Angela, rather than waking her at a critical moment?
Because Andrew did not want to put Angela in a difficult position. She was utterly loyal to God. If she were awake when Andrew went to war with him, she would be torn.
God was the sovereign Angela served, while Andrew was the man she loved. She could not comfortably side with either of them. Rather than make her suffer, he might as well seal her away and release her once everything had settled.
Andrew had never intended to make Angela help him fight God. What he wanted was her memories—he was certainly a scumbag, but not quite that much of one.
Andrew had no real feelings for Angela, but since she was his woman, he would certainly protect her as best he could. The two of them had actually been scheming against each other all along. Andrew had the last laugh, while Angela lost completely, surrendering both body and soul.
Over the next five hundred years, Andrew would continue collecting world's favor while focusing on studying his abilities, filling in the gaps and striving to become the true King of Abilities.
There was no helping it. Those movies did not all take place in the same year, so Andrew needed to spend more time living in the past. Although he could travel through time, doing it too often risked discovery, and he could not pinpoint the exact dates.