Most Helpful Guy
Most guys aren't going to be slowed down by some stretch marks.
For the most part, the parts of a girl that matter to a guy can be seen through clothes. Face, hair, boobs, butt, legs, stomach. The little details like stretch marks aren't things guys waste a lot of time worrying about.
Besides, most guys' bodies aren't perfect either, and we know it, so we're not going to hold you to some higher standard.
Girls are WAY harsher critics of female bodies than the majority of guys.