Alone...I haven't read all the responses, so maybe someone has already said this but....
I always advise people to GAL by taking up dancing! Ballroom, salsa, swing...those are the best place to start.
It is exercise. It is social. It works your brain harder than you will ever imagine! It is totally normal for married people to go but not be dating others or looking for physical intimacy, so the "are you married" question really doesn't matter to other dancers. And at the same time, there is that *tiny bit* of physical intimacy that occurs when you dance with someone...yet it is totally innocent and devoid of romantic meaning (unless you are dancing with an actual life partner, etc).
If you are a man especially, there are ALWAYS more women than men in dance communities so if you can dance and are a man, you will be sought after for dances and women will literally rush to you to get in line for your next free dance.
It is also a good distraction. If you really "get into it", it will literally keep you up at night as you are in your kitchen working on your steps and moves.
At most venues, kids are also welcome! If they are at least the age of 8 - 10, they can learn the basic steps along with you and then you have a partner to practice with when you get home. Dance communities encourage kids to join dancing, and so the kids will feel like welcomed heros if they join you. The adults will make them feel very special, because they ARE. Very few young people know how to dance, so it IS special.
To figure out which kind of dancing you think you might want to try, just ask yourself which kind of music you can listen to for hours at a time:
salsa = salsa dancing, also cha cha, mambo, etc. big band = east coast swing dancing country = country two step and line dancing, also west coast swing slow classics (Glen Miller, etc) = ballroom contemporary = west coast swing (this is a little known type of swing that uses music from all era's but which mostly tend to be on the "disco-ish" side of music...) and hustle (yes people still do the hustle, but it is not a line dance anymore, it is now a partner dance and is fun as hell!)
Here is an example of west coast swing dancing, although of course, these are pro's so normal people can't dance this well....HOWEVER, if you can imagine how much fun these people are having, ALL dancers have that much fun! That's why we do it.