I certainly haven't found that. I was off the floor for six months due to surgery and received an extremely warm welcome back when I returned.
I've had absences for my father's prolonged illness and death (c. 6 months, and while I was able to dance in his city, I was not at home), plus a couple of rounds of surgery, a serious illness, and a serious injury of my own. Tango friends were almost
aggressively eager to dance with me when I returned to the milonga. In fact, I've never had a "Who are you again?" moment in my 13+ years of tango.
For that matter, although
I don't travel much, there are tangueras I see once a year, when they visit for an annual event. Despite traveling the world and dancing with hundreds of partners, they find me, remember details about my life, and dance with me – even remembering how I embrace and dance. Then, poof, it's 12 months until the next tanda.
I strongly suspect that whether or not this is your experience has nothing to do with tango and everything to do with your personality. I engage deeply and share early. If somebody else like that comes along, we're acting like best friends after an hour and we're aware of major details of each other's lives after two. There are plenty of tangueras I know almost as well as my girlfriend or my mother, and 6- to 12-month absences don't change that . . . but I could say the same for non-tango people, like my friend from
40 years ago who just moved here and picked up as though it were yesterday.
It probably helps that I'm a social-media user. I "add" and exchange gossip and news with high-school and university friends, family friends, former coworkers, people I've met at trade shows, neighbors from several past addresses, and of course everyone I meet through tango. Even if I don't or
can't see them for months or years, we remain in touch.
It might also have a cultural dimension. I'm from Atlantic Canada, or as we say, "Down East." Easterners are famed for hospitality . . . I grew up with total strangers being invited to parties, and visitors knocking on the door without warning. Everybody hangs out informally in the kitchen, and there are few taboos in conversation. Where I live and dance now, Québec, the culture is similar – kitchen parties, talking about anything and everything, always having an extra chair for one more person. I realize that there are more formal or staid cultures (or demographics within cultures) where this might not be how things are done, but I've never experienced those myself.