Is it that when the spot crosses the written strike price only then loss occurs or loss will continue occur when spot moves towards written strike price?

General
2

suppose market is at 8000 and you write 8400 ce at 50 rs and market moves to 8200 and call of 50 becomes 70 rs, if you think that position goes wrong then buy at 70 and book out loses but if you think otherwise than let the market pan out