Does freedom from passion necessarily mean freedom from romantic relationships?

For enlightened beings, the Buddhas always teach that they have no views at all.

Compare this with what the Buddha actually taught:

"There are these ten fetters. Which ten? Five lower fetters & five higher fetters. And which are the five lower fetters? Self-identity views, uncertainty, grasping at precepts & practices, sensual desire, & ill will. These are the five lower fetters. And which are the five higher fetters? Passion for form, passion for what is formless, conceit, restlessness, & ignorance. These are the five higher fetters. And these are the ten fetters." http://www.accesstoinsight.org/tipitaka/an/an10/an10.013.than.html

"Views" are not one of the fetters an arahant is freed from because "the Buddhas always teach" Noble, or Transcendent, Right View.

An awakened disciple "is a person of right view, one whose view is made straight," not a person with "no views at all."

"Now, when a disciple of the noble ones discerns fermentation, the origination of fermentation, the cessation of fermentation, and the way of practice leading to the cessation of fermentation in this way, when — having entirely abandoned passion-obsession, having abolished aversion-obsession, having uprooted the view-&-conceit obsession 'I am'; having abandoned ignorance & given rise to clear knowing — he has put an end to suffering & stress right in the here-&-now, it is to this extent, too, that a disciple of the noble ones is a person of right view, one whose view is made straight, who is endowed with verified confidence in the Dhamma, and who has arrived at this true Dhamma." http://www.accesstoinsight.org/tipitaka/mn/mn.009.than.html

And:

  1. "When, friends, a noble disciple understands the taints, the origin of the taints, the cessation of the taints, and the way leading to the cessation of the taints, in that way he is one of *right view,** whose view is straight, who has perfect confidence in the Dhamma and has arrived at this true Dhamma.* http://www.accesstoinsight.org/tipitaka/mn/mn.009.ntbb.html#asava

(emphasis all mine)

/r/Buddhism Thread