I think some people just spout off numbers without thinking about it. You're goal is 135, but your DH may just think oh, 105 is a small number, etc etc, same thing with your mom.
If someone was to look at me now, I don't think they'd guess I weigh 194 - I look like I did in high school when I was very chubby and weighed 175 (thank you, current muscle mass). My "healthy" BMI is between 146 and 122. At 146 I would look emaciated, so I understand what you're saying.
Feel free to vent, because that's what we're here for

I just don't think they realize what they're saying.
Maybe if you tried explaining to them?