|Very nicely done. In stanza 3, line 2, I would put a comma between "them" and "sad." Among other things, it would make the line a little longer, to fit with line 1. In the same stanza, line 4 is quite a bit longer than the others. Would you consider a change such as:
"Sad that I won't ever get to talk to you,
Or say how much love I had for you."
Also, in the interest of scansion, perhaps in line 4 of stanza 2, you might insert the word "I" -- "Instead I sat and I cried." The meter would then match line 3.
Also, you might consider doing something with stanza 1, to keep it in line with the rhyme scheme that you use throughout the rrest of the poem.
OK. Enough for the technical "stuff." You have done a very good job of relaying the feeling of mourning for the loss of a loved one -- quite some time ago, I gather. I laud your loyalty to your loved one, that you still think about him/her every day. It must have been a terrible loss, and I'm sorry that you had to go through it. And I'm sad that you had to be "strong." Love and light, Candace