Read the following context and choose the best option to answer the question.
Context: So today is me and Jen 's one year anniversary ! ! Nothing spectacular happened on this day last year but we chose the fifteenth because there was no real " official " start to our relationship . We met on June 15th ( which is when she wanted to count from ) but I was with my ex and that ended the begining of August and Jen and I just moved seemlessly into our relationship .
Question: Why is this anniversary so low key compared to others ?
Options: 
- They have had many anniversaries before .
 - They do n't really know a start date .
 - None of the above choices .
 - They are splitting up .


They do n't really know a start date .