You can have too much of anything if it's not needed but no-one ever got overweight by eating too much fruit did they?
If you are hungry between meals then SW say eat fruit or veg, they tell you to have fruit on your breakfast cereal, fruit as a dessert.....
Fruit is not the enemy, sugars or not. If you NEED it, eat it.
Also, if you find you are very hungry between meals then eat more for your meals. I have either a big bowl of fruit salad for breakfast or berries or a banana on cereal, a banana mid morning and then a piece of fruit after lunch. It isn't that which makes me gain weight, it's the bad stuff!