I would weight train and suppose look it to an extent, all my mates know I do, some are interested others not in the slightest..some times get the "size of your guns" joke..., but, they are my mates, and either of us ask each other a favour they are always willing.
Find some better friends.
If they are overdoing it, or are serious in how they come across ( most times masked as a "joke" but you can hear the difference)..its purely jealously, though they might not see it in themselves, fact is people resent others that can make a positive physical change and start looking better, they hate you for the fact you can do it, and they seemingly cannot be bothered. For a lot of people they wont admit it, but they have tried at some point and failed cause they didnt get in shape after 1 week of trying, and are currently not happy with how they look in the mirror.