If I go down the lover path for Lily, does it lock me out from every other sex scene with the other girls?
Both Lily's love and submission paths will not lock out other girls. The only way to lock them out, is if you make a choice where that girl dies.
wait thats a thing I guess I am good at making the saving them choices
Yes, every girl in this game can die if you make the wrong choices. Seems you've chosen correctly.
