As Scripture plainly states, the salvation of anyone is entirely God's doing. He saves us. We don't save ourselves. And God moved to save us, not when we had already begun to move toward Him, or when we were by our own righteous deeds deserving of His efforts to save us, but when we were enemies toward God and alienated from Him, when we were dead in trespasses and sins. Our sinful rebellion toward God did not forestall His saving work, it did not prevent Him from reaching out in love to redeem us. It's important to understand that, left to ourselves in this condition of rebellion and spiritual deadness, we would never have chosen God. He had to take the initiative and work to persuade us to Himself, overcoming our ignorance, and selfishness, and sin and drawing us to Himself with His goodness, grace and love. We weren't in agreement, necessarily, when God began the process of our personal redemption. He acted unilaterally in beginning the adoption process of each of us. Why, then, do we think that we can negate all God has done to save us by a simple act of rejection of Him? Goodness! If that was all it took to put God off, none of us would have been saved! But God did not wait on our good feeling toward Him to save us and He doesn't rely on our good feeling toward Him to preserve the relationship with us that He (not we) forged. This idea, then, that we can let go of our salvation, hand it back to God like some item purchased from WalMart with which we are no longer happy, mistakes entirely on what basis our relationship with God was created and is sustained.
1 Thessalonians 5:23-24
23 Now may the God of peace Himself sanctify you completely; and may your whole spirit, soul, and body be preserved blameless at the coming of our Lord Jesus Christ.
24 He who calls you is faithful, who also will do it.
Selah.