Personally I don't see scripture that teaches Gods love is unconditional.
Jesus:
John 15:21
21 He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him.
As to our initial salvation we are not saved by any righteousness we had done. According to our present walk he will love us if we continue in his commandments.
John 15:9-10
9 As the Father hath loved me, so have I loved you: continue ye in my love.
10 If ye keep my commandments, ye shall abide in my love; even as I have kept my Father's commandments, and abide in his love.