I think it's more a case of if you care really. If they bother you cover them up. if they don't, don't worry about it. As for him, he most likely wouldn't care less and if he does, I'm sorry but he isn't worth your time. It is that simple. If he has not one single scar, mole, freckle etc on his skin and is mr flawless then it's one thing (although still shouldn't make a difference) but chances are he isn't, we all have imperfections and stretch marks are very common