I do not think that Mulder trusts any one other than Scully. He s very solitary. She is the only one who takes him seriously. I don t know if they re in love. In a way their relationship is deeper than that because they cannot live without each other.
We should conceive of ourselves not as rulers of Earth but as highly powerful conscious stewards: The Earth is given to us in trust and we can screw it up or make it work well and sustainably.