They said that weight doesn't really matter in a relationship. When they are going out with someone they hardly ever notice changes in weight unless it's a major difference.
The guys said that they wouldn't break up with a girl just because she had an eating disorder, they would do what they could to be supportive and help.
But if the relationship was causing the girl more stress, they would put the relationship on hold to only be there as a good friend, so that the girl could deal with one thing at a time, and they wouldn't be adding to her stress. They also said that it mostly depends on the individual, and the individual relationship.
I hope this has helped you some.
If you do have an eating disorder, you need to get some help.