I am a flight attendant based in London (LHR) and I have to say that I have met lifelong friends while flying. In fact, my roomate in training is the godfather of my son.
When dealing with the public all the time I think you naturally bond with you fellow crew members in a way you might not in other jobs.
If you are lucky enough to get long layovers you will have a blast with co-workers on them too.
Good luck. If you have a good attitude you will have a rich social life in this job.