The lovebugs are seasonal, May and September, I believe. We go in July and December and have never seen them before (I've also been there in June and January). Bring some sort of bug spray if you're concerned. One year I got bit by "chiggers" and my calves and ankles were three times their nomal size. Obviously I was freaking out and I called my doctor at home. He immediately knew what the bites were and he prescribed me a cortisone pack and they went away in two days, but prior to that the bites were extremely itchy and painful.
I've always packed lotion with bug spray after that. Also, don't wear fruity scented lotion, perfume, or spray, according to my doctor.