The main reasons a good tenant will move, are for these reasons.1.Unsafe dwelling or too unsanitary. 2.Invasive landlord, and landlord not fix issues.3.Relocating for work, marriage, divorce, or need a bigger or smaller place. 

I’ve seen too many partnerships and marriages fall apart.

Tell her if she wants to live separately, then she can move and take the buddy with her.Legally, from my understanding of marriage and co-owners of a property, it would be like any other business partnership where the partners are equal. 

When I  read your posts I am always shocked that you know and care about each prospects marriage status, offspring status, etc etc. its odd.Income? 

I didn’t get the property I wanted the most, but I have a great marriage and I’m partially house hacking.

If student loans were usually small payments, you wouldn't have folks delaying marriage, children, and home ownership because of them.  

U should open a marriage counseling services ad a side business.  

The relevant section of the lease in question states:If Tenant elects to voluntarily terminate this Lease during the initial Term (for example, house purchase, voluntary job change, marriage), two (2) full months' written notice prior to the rent due date to quit and vacate -- to run from the first of the month to the last day of the second month -- shall be given to Landlord.

Marriage bonds you legally to that of your spouse.

While we're not married yet, though we plan on marriage.