Love is different from relationship...what do you say? Love is a feeling.....

I think relationships and love shouldn't really be separated. Whether it's between children and parents, couples, friends, etc, love is the key to sustain those relationship. Without love, the relationship will not be maintained. For instance, if there's no love between children and parents, probably the children will ignore parents and the relationship between them barely exists. I think the kind of feeling you are trying to express is more of romance, rather than love. Indeed, romance is a feeling that cannot be expressed and it's quite different from relationships and love.

it is very much different..love come deep from our heart.without love, one cannot have a good/deep relationship between e.g man to woman,parents to son/daugther.. when we love it means eternity..when we love it is something to die/live for... relationship still can happen without love,if we're apart one still can create a new one.we often simply forget it(sometimes!)

Yes and that is true. If the one involve is not yet experience about love he/she cannot tell what it is. Experience can tell truth.

There are diferent kinds of relationships. I feel that you can be in a relationship with a boy/girl friend and still not love them. Love is when you feel like you can't or don't want to spend the rest of your life without this person. It really goes deeper than that but as you said it has to be felt not explained. So to answer your question yes love and relationship are two different things.