Elijah and Marcel form an unlikely alliance as Klaus sets his plan in motion to get Davina back. Now, we have got the complete detailed explanation and answer for everyone, who is interested!. . . When Elena finds out, she ends her relationship with Stefan. Answer (1 of 5): Elena starts developing feelings for Damon in the beginning of season 4 and they also have a secret affair for a while when Elena was sired to Damon. What episode do Damon and Elena sleep together for the first time? 11 Damon And Elena Sleep Together For The First Time In season 4, however, the doppelgänger makes a different decision.