The way you just wrote it here sounds perfect and heart felt

What you've written is very good just as it is

Thank you both for your kind comments, I just feel that the part about his love for her shining through needs to be put into a better sentence.

How about this?

You two had something so rare-- a relationship that was true and boundless. Anyone who was lucky enough to spend just a few minutes with the two of you could see that. Your joy together was palpable.

Jo

When ever we were with you I found that he was so genuinely in love with you. it just showed on his face when you were talking or relating a story. He was a very special kind, humble, thoughtful and very funny guy

Jojoco,

Thank you so much. That helps alot.

Mtn: I know what you are saying but what Jojo gave me were a few correct words which I can now put in my own words. English is my second language and I get frustrated because I know what I want to say and convey but sometimes lack the knowhow to put it to paper. I always need help with just prettying up my thoughts.

Just cut and paste what you've written in your post into coherent sentences. Some editorial eyes here have judged it pretty good. It would be one thing if it wasn't comprehensible or unclear, but from your post I think it is pretty clear and sounds good. I once knew a couple like that, very lucky indeed. I feel that way about my SO, we are sickening together. We just really like being together, all the time. Not sure that is very common, so your friend was lucky. I'm sure she will appreciate your card and also appreciate you relaying your memories whenever you can. My mom died nine months ago and I just really appreciate people talking about her. She may be gone but she sure as heck isn't forgotten and I hate that some people seem to think that you should turn a dead person into a persona non grata so as not to upset their loved ones. For me at least, the silence is far worse than the memories. Tell your friend what you told us, and tell it to her often!! In as many ways as you can think of to say it, none of them will be wrong. And I am so sorry for YOUR LOSS of your friend! Sharing memories is all good!!

Thank you voila, and pinkmountain, you have all been kind to answer my post and I have now got the note written out.

Once again, a big thank you.

I like what you said...especially since it comes from your heart. You've expressed it quite well. I agree too that hearing memories from others is especially helpful...it helps keep the person alive in that you are still learning about them. As Mitch Albom put it, when you lose someone, your relationship with them doesn't end, it just changes.

I'm terribly sorry for your loss.

Another who loves what you said and that you captured what you felt when you saw them together. Personalizing what the person meant to you is always a perfect thing to remember and share, and it adds such a nice touch to the note. I am sorry for the loss of your friend.

I've been the recipient of these notes, cards and letters. Anything from your heart--a remembrance, kindness, hilarious moment--is appreciated and treasured. Many people are afraid to upset the bereaved, concerned that directly talking about their loved one will be too upsetting. I found it deeply comforting to know that he mattered to many, will be missed, and kept in memory forever.

Lyban, I'm so very sorry for your loss and for your friend too. I can't even imagine that kind of pain.
I have to agree with the others that the words you wrote are the best. Since English is your second language, I think it would sound odd if you said it as if it "perfectly" which is what I think you are hoping for. You know, not like it really came from you. but something you might find in a greeting card.
If you really still don't feel your own words are adequate, then if you are a praying person, do so. I had a similar note to write and though I knew how I felt, I could not find words. At all. It was all too emotional since her loss was so close to my recent loss. You are already way ahead of me on this as you do have some words written. Very nicely too. After some frustration in trying to write, I bowed my head and prayed for words that expressed my own feelings. What came was a twenty line poem that said my feelings perfectly. I have shared it often with others that have lost a loved one (a Mom in this case) and everyone says it's just how they felt too.
Your case is different since you are wanting to express what you saw in them as a couple and not that you understand what she is going through. By telling her the love you saw in his eyes when he so lovingly looked at his her would be a very special gift for her to hear right now. To know that others saw the love her husband had for her. A love that will always be there in her heart, but she can no longer hold in her arms. It will be of great comfort for her to know that others know how great her loss is.