Friends or allies?

So I've seen this pic on my news feed several times now and I have a little rebuttal for the argument presented and the very "matter-of-factly" way it's presented in.

Friendship is a voluntary relationship. No one forces anyone to have friends or hang out with completely unrelated people to him just to make this person's day worse...just for the hell of it. We choose our friends, and suppose we do it in a healthy manner, we choose them based on common interests and fields of enjoyment. We choose them to make our days pass by a little better and to share with them our crazy antics and passions. We have so much to talk to them about, and what we talk about is completely unnecessarily related to our separate social lives. We talk sports, music, literature, long walks, health, philosophy...etc. with the occasional banter about current events and/or work and life troubles.

Friendship is optional. You don't have to call a person a friend if you two don't have anything in common. You can resort to acquaintance/colleague to rightfully label a person you don't choose to accompany willingfully. It's totally okay to have this as a circle in your life as a mature adult. You no longer play with the kids in the play ground and call them all your besties the next moment. There are boundaries and correct labels to be used.

However, and this is my main conflict with the picture, you can't really complain about a friend wanting to contact you daily, nor is it possible that you call someone a "friend" and be bothered by their wanting to chat up for a few minutes every other day. Of course we all have the "leave me alone" days in which we feel rather inclined to being solitary, but wanting to be alone and away from people you call your friends is quite an unhealthy sign if you ask me.

Second point in the picture is "if you need me I'll be there," well, it goes in line with the old saying we always hear: "A friend in need is a friend indeed." I want to say that's just not what friendship is for.
Friendship is a mutually enriching experience, it's not "I'm here for you today so you should be there for me tomorrow." It's not a who-repays-whom game. It's not a collection of tough moments in which you had a friend help you or you helped a friend. In fact, people who view friendships this way might suffer such lousy time with their "friends" when nothing crucial (whether good or bad) is happening. A sad sight indeed.
I'll leave the always articulate C. S. Lewis explain this better from his book "The Four Loves." 

" Others again would say that Friendship is extremely useful, perhaps necessary for survival, to the individual. They could produce plenty of authority: "bare is back without brother behind it" and "there is a friend that sticketh closer than a brother". But when we speak thus we are using friend to mean "ally". In ordinary usage friend means, or should mean, more than that. A Friend will, to be sure, prove himself to be also an ally when alliance becomes necessary; will lend or give when we are in need, nurse us in sickness, stand up for us among our enemies, do what he can for our widows and orphans. But such good offices are not the stuff of Friendship. The occasions for them are almost interruptions. They are in one way relevant to it, in another not. Relevant, because you would be a false friend if you would not do them when the need arose; irrelevant, because the role of benefactor always remains accidental, even a little alien, to that of Friend. It is almost embarrassing. For Friendship is utterly free from Affection's need to be needed. We are sorry that any gift or loan or night-watching should have been necessary - and now, for heaven's sake, let us forget all about it and go back to the things we really want to do or talk of together. Even gratitude is no enrichment to this love. The stereotyped "Don't mention it" here expresses what we really feel. The mark of perfect Friendship is not that help will be given when the pinch comes (of course it will) but that, having been given, it makes no difference at all. It was a distraction, an anomaly. It was a horrible waste of the time, always too short, that we had together. Perhaps we had only a couple of hours in which to talk and, God bless us, twenty minutes of it has had to be devoted to affairs."

- C. S. Lewis, The Four Loves

L