["I wasn't expecting this, by when I woke up this morning on my birthday, my boyfriend informed me that he planned a trip to Califoria for us and that we are leaving today!", 'I would be so excited!', 'Same here! It was a wonderful idea, and very impromptu!']
Hopefully everything goes really well for you and happy birthday!
On my 29th birthday, my boyfriend surprised me with an impromptu trip to California!