The last two lines of this rather short poem spoil this try. You are always together, but you cannot forget her is lacking in sense.
If you two are always together how the sense of not forgeting her come into place in this. It would have made more sense to have said that you are often apart but you cannot forget her. Just a different take on this opinion that as you can see is only mine, and other readers may think otherwise.
Do not worry too much about this. The poem is not badly writien. It has its good moments though it is short.
This is not bad poetry, but I wish you had given it a better end. I was waiting for completion, but then the poem ended. But do not think so much of this. It is only my opinion. Other readers may think otherwise.
From the begining, I knew that this try was about a dream; it reads of such from the start.
I find this poem with good poetic diction and the rhyme scheme is good. The overall effect of this poem is one that the reading of it is never boring. I enjoyed the going through it fron begining to end. You did well here.