You begin with three eggs. When they reach adulthood, either connect with another familitchi or watch the dating show. once you've chosen who it is you'd like to marry, select one of your tamas to marry it. The other two blast of to tama planet. hope I helped!
Well yes, you can marry off two of the three!! If you know someone else with a V5 that is at the mating age you can mate one of yours with his/hers!! Here's the thing, you can choose "accept" or "give", "Accept" means that YOU will take the new eggs/generation, if you want to marry off a second tama DON'T do that, instead you should hit "Give" this gives your friend the new eggs, and while his/her other two tamagotchis go back to tama planet you have another tama to mate!!!