I've been meaning to post this and keep forgetting. I hope it's allowed. Note to the mods: apologies if this isn't allowed. Just trying to be helpful.
I was widowed last January and in March I joined a Meetup group called "Walking for Fun at Disney" and it was the best thing I did. The group has about 5k members (not all active, many join in only when they're on vacation in Orlando) and there are a variety of events every week. I suggest anybody coming to WDW as a single join the group. You'd be surprised at how many lone travellers join us along the way when we're at American Gardens at Epcot for a concert. The group is friendly, welcoming to newcomers and a lot of fun. Members are all ages, ethnic backgrounds, married and singles, from different walks of life (some are cast members) and they all have one thing in common: they love Disney.
There are several groups on Meetup that focus on WDW. You could join a few just to see what they've got going while you're in town. Walking for Fun at Disney has movies almost every Tuesday night. Another group schedules miniature golf every Sunday morning. You should be able to find something to do, meet new people and not be alone the whole time.
Have fun while you're here. I hope the weather is better by then.
