After years of being lonely, you spend some time for Lucifer. Needless to say you two were in bed doing 'you know what'. When you were done, you expected Lucifer to cuddle up to you for some after care..

But he sat up an looked away, his back facing you. He felt like he forced you to be here, that you were here becuse of pity

Lucifer: You are not obligated to stay... Just go...

He mumbled, still panting a little