I'm hosting a dinner and planning to serve fried chicken (boyfriend's idea) but it's spring and I wan the sides to be on the healthier. ideas?

A vinegar-based slaw (not mayo) would be on the healthy side, colorful and nicely cut the richness of fried chicken. An Asian-ish one, with sesame oil, ponzu and rice vinegar might be fun for a party: http://www.steamykitchen.com/16578-asian-slaw-ponzu-dressing.html
You could also do homemade spicy sweet potato "fries" in the oven. Instead of (or in addition to) the slaw, saute some greens (spinach, kale, whatever) with olive oil and garlic - throw in some raisins and toasted pine nuts if you want to dress it up. (Buttermilk corn bread or corn sticks would go nicely too.)

Wedge Salad with oven dried tomatoes, bacon, croutons and bacon.
With butter milk chive dressing.
http://www.npr.org/templates/story/story.php?storyId=120133084
And for the fried chicken you can go full Thomas Keller "Ad Hoc" with the recipe from the same cookbook.
http://momofukufor2.com/2010/03/ad-hoc-buttermilk-fried-chicken-recipe/

First, consider baking the chicken instead of frying - that is healthier. You can do a summery potato salad but use a healthier oil/vinegar dressing; or, a yogurt dressing instead of the traditional mayonnaise. Make a green salad with some bacon bits on it to satisfy the need for a non-healthy ingredient. Everyone ends up happy.
Frozen yogurt for dessert instead of ice cream !

Spring always makes me crave peas with mint. For healthier sides, skinny mashed potatoes. Radish salad. Maybe Nigella's Peas with buttery lettuce, http://girlthatcooks.blogspot.com/2009/01/nigellas-peas-with-buttery-lettuce.html