No one is being rude. We're giving you facts so you can be informed.
Bubblenests don't really mean anything. The same way a dog will sniff things on a walk a betta will build a nest. It's instinct. Like OFL said even bettas in sewage conditions will build nests, some males have a higher drive to build nests than others and it also seems to me that younger fish (in prime spawning age) are also more likely to build a nest.
Breeding is very time consuming and expensive. I suggest if you're curious about breeding you first read the stickies in the breeding section. Here are the links.
If you can answer all of these questions you have done enough research to breed successfully ---> http://www.bettafish.com/showthread.php?t=65791
This is an Overview of feeding fry.. a very important thing to be able to do right ---> http://www.bettafish.com/showthread.php?t=51144
This is a general overview of the most common method of spawning, there are many methods but this is probably easiest for new breeders --->http://www.bettafish.com/showthread.php?t=30005
Basic run through, you're going to need at least 2 tanks (one to spawn and one for grow out), 25-50 jars, heating for all the tanks and the jars, live foods and high quality frozen and pelleted foods. You'll need to know where all the fry will go whether it be to friends, craigslist, petstores, online. IF you sell online you'll have to know how to pack and ship correctly.
This isn't meant to scare you.. just to present you with the information you need to make an informed decision on whether you're ready to breed or not.
One last thing to keep in mind. Your fish does not care about having babies, he'll probably be just as happy never spawning... it is very hard on fish and quite stressful so make sure you're willing to make that sacrifice.