When I encounter numbers I tend to relate them to my understanding of numerology. In my sense, "2" indicates the energy of balance and cooperation. "5" indicates changes happening now or very soon.
However, I also seem to feel that sometimes the numbers are referring to "chakra work" or the energies of self that live within certain frequency bands, or stem from our field via certain centers, or chakras.
In that case, "2" indicates the 2nd chakra; relationship of the self to the world of matter, sexual relationships, relationships with other people (in varying ways), relationships to ideas, beliefs, attitudes, etc. (addictions are manifest from here, linked with the 5th, our will)
To make it more clear, when we relate to others from our heart center, the energy dynamic is typically non-draining, free or unattached, and not based on duality but rather unity, harmony, love, etc. When we relate to others from our 2nd chakra, there tends to be a dualistic nature to the relationship... it can be a "one up/one down" imbalanced dynamic in play, or a dependency or addiction... that sort of thing.
And "5" in the chakra sense relates to the 5th chakra, which is the chakra of "Personal Will", as well as self-expression.
When numbers come in sequences that mirror each other, as you've noticed, it often indicates (to me, at least) that I am "in the circumstances, with the people, having the interactions and/or problems that show me what needs rectifying" in my energetic integrity. These are the ways in which I put my willfulness before my alignment with the highest good, and it's being mirrored for me by other people and situations around me, for my edification.
In other words... my whole life during the timeframe that I see these numbers appearing, is a segment of my life dealing particularly with the issues that live in me, in regard to what those chakras represent. So I can witness my experiences from a position of understanding that all I'm encountering at this time is helping me understand myself and life in this particular way (according to the chakra hallmarks)
It is not uncommon at all to work with the 2nd and 5th chakras in combination, since so many of our unhealthy relationships to others and the world at large have to do with the stubbornness of our personal will usurping our greater love-based intent for our own lives... as well as our heart's desire for relating to all the rest of life.
Don't know if that was clear, but hope it helps. If not... toss. 
~Sowelu
"The most important decision you have to make is whether you live in a hostile or friendly universe."
~ Albert Einstein
The real voyage of discovery consists not in seeking new landscapes, but in having new eyes. ~Marcel Proust
The evolution of humanity is an evolution of the heart. The path is through the heart.