Heather Akers sits on the comfy couch situated in the center of the lobby of Giving Tree Theater in Marion while her husband, Richie, works on a project in the theater’s house, occasionally walking in and out of the lobby. Their retired greyhound, Thunder, wanders from one to the other and back again.She smiles before talking about Giving Tree’s beginnings — the kind of smile that shows pride and contentment mixed with just a hint of overwhelmed exasperation.“I’ve always loved the theater,” she starts.Akers didn’t study theater in college or pursue a career in acting.