Hello Lucky! Good morning
Sorry for missing class of today. I was very looking forward to discuss with you today's topic.
But I've got a* appointment (is this correct?) had no choice to delay the class to other teachers. (guess you're not available on that time!)
For you to better understand, this is the part of my diary.
I met a person in a seminar, the communication between me and him was very smoothly. After the seminar we met a few times outside. I'm very straight when i fall in love.. I thought that he had same feeling with me but i guess it wasn't..

*I've got AN appointment     Ella, don't feel sorry for missing class; things come up all of the time in our lives, and sometimes we are forced to re-arrange our schedules to get everything done.  During our next class, we can talk about "love and how to live through it."  I think that I will be able to give you a good perspective that will help you.  Don't be blue; things WILL be better!  Keep happy until we talk again.

Lucky