The diagram show $28$ lattice points, each one unit from its nearest neighbors. Segment $AB$ meets segment $CD$ at $E$. Find the length of segment $AE$.

[asy]
path seg1, seg2;
seg1=(6,0)--(0,3);
seg2=(2,0)--(4,2);
dot((0,0));
dot((1,0));
fill(circle((2,0),0.1),black);
dot((3,0));
dot((4,0));
dot((5,0));
fill(circle((6,0),0.1),black);
dot((0,1));
dot((1,1));
dot((2,1));
dot((3,1));
dot((4,1));
dot((5,1));
dot((6,1));
dot((0,2));
dot((1,2));
dot((2,2));
dot((3,2));
fill(circle((4,2),0.1),black);
dot((5,2));
dot((6,2));
fill(circle((0,3),0.1),black);
dot((1,3));
dot((2,3));
dot((3,3));
dot((4,3));
dot((5,3));
dot((6,3));
draw(seg1);
draw(seg2);
pair [] x=intersectionpoints(seg1,seg2);
fill(circle(x[0],0.1),black);
label("$A$",(0,3),NW);
label("$B$",(6,0),SE);
label("$C$",(4,2),NE);
label("$D$",(2,0),S);
label("$E$",x[0],N);[/asy]

$\text{(A)}\ \frac{4\sqrt5}{3}\qquad\text{(B)}\ \frac{5\sqrt5}{3}\qquad\text{(C)}\ \frac{12\sqrt5}{7}\qquad\text{(D)}\ 2\sqrt5 \qquad\text{(E)}\ \frac{5\sqrt{65}}{9}$
1. **Identify Coordinates:**
   - The coordinates of the points are:
     - \( A = (0, 3) \)
     - \( B = (6, 0) \)
     - \( C = (4, 2) \)
     - \( D = (2, 0) \)

2. **Find Equations of Lines:**
   - The equation of line \( AB \):
     \[
     \text{slope of } AB = \frac{0 - 3}{6 - 0} = -\frac{1}{2}
     \]
     Using point-slope form \( y - y_1 = m(x - x_1) \):
     \[
     y - 3 = -\frac{1}{2}(x - 0) \implies y = -\frac{1}{2}x + 3
     \]
   - The equation of line \( CD \):
     \[
     \text{slope of } CD = \frac{2 - 0}{4 - 2} = 1
     \]
     Using point-slope form:
     \[
     y - 2 = 1(x - 4) \implies y = x - 2
     \]

3. **Find Intersection Point \( E \):**
   - Set the equations equal to find \( E \):
     \[
     -\frac{1}{2}x + 3 = x - 2
     \]
     Solving for \( x \):
     \[
     3 + 2 = x + \frac{1}{2}x \implies 5 = \frac{3}{2}x \implies x = \frac{10}{3}
     \]
     Substitute \( x \) back into \( y = x - 2 \):
     \[
     y = \frac{10}{3} - 2 = \frac{10}{3} - \frac{6}{3} = \frac{4}{3}
     \]
     Thus, \( E = \left( \frac{10}{3}, \frac{4}{3} \right) \).

4. **Calculate Length of \( AE \):**
   - Use the distance formula:
     \[
     AE = \sqrt{\left( \frac{10}{3} - 0 \right)^2 + \left( \frac{4}{3} - 3 \right)^2}
     \]
     Simplify:
     \[
     AE = \sqrt{\left( \frac{10}{3} \right)^2 + \left( \frac{4}{3} - \frac{9}{3} \right)^2} = \sqrt{\left( \frac{10}{3} \right)^2 + \left( -\frac{5}{3} \right)^2}
     \]
     \[
     AE = \sqrt{\frac{100}{9} + \frac{25}{9}} = \sqrt{\frac{125}{9}} = \frac{\sqrt{125}}{3} = \frac{5\sqrt{5}}{3}
     \]

The final answer is \(\boxed{\frac{5\sqrt{5}}{3}}\).