f you have found that perfect wolf that you want to be with, then that's perfectly fine. There are only three rules if you want to become mates.
Both wolves need to want to be each others mate
And you have to ask an alpha and s/he needs to approve
Also, please don't meet each other then become mates. There is not set time I want you to wait, but please give it time xD
Other than that it's up to you.
Just to make things interesting you do not have to stay with your mate, you can split up if one of you wish to and have affairs. xD