One of the biggest myth about God is that God can be offended by man's action. Nothing you do can offend God. Man can blow up the who world and still you cannot hurt God. Nothing you do can hurt God. He was not even burnt when he was in the burning bush talking to Moses
If God is hurt by man's weakness, God must be a weak and is an imperfect creator who could not foresee what was creating. Or he may be insane enough to create something to hurt him. He is not any of these.
So God does not need your forgiveness because he was never hurt.
We may be weak enough to feel hurt by someone else's action.
And forgiveness may be appropriate here.
Go ahead and love again. God loves you and he prefers that you to make better choices like being in love again. He will never reject you.
This truth about God is too magnificent and grand to be accepted by the masses.