No. Stretch marks are a part of life, like acne or pesky nose hairs that make you sneeze when you pull them out with a tweezer. If a guy stops making out with you because of your stretch marks, he's a jerk and/or secretly gay. You don't want to be with anyone who would dump you over stretch marks.
Also, chances are they aren't as bad as you think. You live with your body every day and obsess over every little blemish and imperfection. When we get you out of your clothes, there aren't thinking, "boy, I wish she didn't have that tiny mole on her back." there thinking, "NAKED WOMAN." It's like a banner that flashes through there head eliminating every other thought.
And, look, they also have plenty of body imperfections that drive them crazy. Guys worry about what women will think about our guts, our backne, our front-ne. We know what it's like to have a love/hate relationship with there own body. When the right guy falls for you, it's going to be about more than just your body. He's going to love everything about you, including the stretch marks.
If it really bothers you, look into ways of getting rid of them or minimizing their appearance. There are creams, scrubs, and other things you can use. In extreme cases, there's surgery. (Apparently they use lasers now. What can't lasers do?) But, honestly, it's not that big of a deal. They're very common. Pregnant women have been dealing with them for decades.
Focus on making yourself the best person you can be, and try not to obsess over minor things like stretch marks. Try to improve your confidence and self-image. Stop saying that you're "gross" and "cellulite city." After all, you don't want to give yourself worry lines. I'm kidding!