Is it possible to get diabetes from eating too much fruit?

Not really. Type 2 diabetes is caused by Insulin resistance, usually as a result of obesity. The development of diabetes is going to be indepent of the exact foods you eat. Fruits can be high in natural sugar, but sugar itself does not cause diabetes. Obesity resulting from too many calories and weight gain can lead to diabetes. Other factors can also play an important role including family hisotry.