Yes. Loving someone is not the Jedi Way. You can have compassion for the whole of civilization but you can't be attached to one person. Because of the nature of the Force and the fact that the Jedi manipulate the Force to their own will, if one is emotionally attached to an individual, one could slide easily down the path of possessiveness in wanting to keep that individual with them. The problem stems from the Dark Side. It's more powerful than the Light Side and it will "dominate you."
As Anakin so foolishly states to Obi-Wan, "you underestimate my power", it is clear that the Dark Side has him. He's not thinking rationally during that fight because of his belief that he has control of the "Dark Side."
This is the path of the Jedi. I don't read EU one bit but I'm sure there are tales of other Jedi loving someone eventhough they know it's not the way and could lead down a dangerous path. Again, it has to do with the Force. The Force is clearly a powerful thing. Why else does Vader bait Luke about his sister in Episode VI and that baiting causes Luke to loose it for a moment when he goes beserek on his father....
...it's the fear of loss of a loved one and the nature of the Force.