Mounting a contemporary dance show together doesn’t seem like the best way to get over your ex, even if you are (or rather, were) ballet’s most fabulously marketable couple.

For a dance company, the always delicate balance between preserving your heritage and creating an exciting future becomes especially hard to negotiate when you are the most venerable institution in your field. The Mariinsky Ballet, now on tour in London, have this problem magnified by a general perception (theirs and the public’s) that they are the world’s keepers of the great Russian ballet tradition, which they are expected to represent at its finest.

School’s out for summer, even Parliament is on recess, and the streets around my house are suddenly devoid of children, as families make for the hills (or at least the beach). It should be dead season for all but prommers (and the suffering residents of Edinburgh) but ballet in London has had the most extraordinary week of first-class acts, with the Mariinsky at the Royal Opera House, Sylvie Guillem and Russell Maliphant at the Coliseum, and now the BalletBoyz’ 10-strong troupe The Talent at the Roundhouse in Camden.

Last night’s performance of PUSH at the London Colisem left me exhilarated and downcast in equal measure. Exhilarated because dancer Sylvie Guillem, dancer/choreographer Russell Maliphant and lighting genius Michael Hulls together create the Holy Grail of dance, a blend of intelligence, talent and charisma so stunning and convincing that it seems to trascend description and become sacramental. And downcast because this run is the last of PUSH in London, and so for most of us the last time we’ll ever see it, or perhaps even see Guillem or Maliphant perform.

One of the reasons I always tell ballet sceptics to give Romeo and Juliet a go is that any production with halfway decent lovers and a vaguely competent rendition of Prokofiev’s score should convince them that this art form isn’t just about swans and sugar plums.

If you’ve reached the top of your profession and then spent twenty years there, retiring is going to be hard. It will be many times harder if, like New York City Ballet principal Wendy Whelan, you were only twenty-four when you reached that rank, and only in your mid-forties when injuries came calling and roles started to fall away - unwelcome signs that the end of a classical ballet career is nigh.

For all it’s a balmy July here, the litany of appalling news from the world’s conflict zones will have left many of us feeling less than summery at heart. In that frame of mind, you might wonder whether Coppélia, English National Ballet’s latest production, is quite what you want to see. We are speaking, after all, of a frothy 19th-century comic ballet, full of charading silliness, populated by unfeasibly cheerful peasants, and ending happily with the all-too-predictable wedding. Sharp social commentary – or existential comfort – it ain’t.

Having a strong company style is usually no bad thing, especially if – as with San Francisco Ballet – the main component of it is a commitment to excellence. It has been impressive watching the gritty energy with which, night after night, the American visitors to Paris dish up meaty triple bills (most pieces coming in at 35 minutes or longer) and serve them with éclat. Polish and professionalism like this help dancers keep going through a gruelling tour, and ensure audiences go away happy. But you can have too much of a good thing.

In 2005, San Francisco Ballet were the first company to visit Paris as part of a new summer dance festival, Les Étés de la Danse. Helped not only by this auspicious start, but by the obvious demand for live dance in a month traditionally barren for the Parisian performing arts, the festival prospered, and in this its 10th year, has brought the Americans back with a stonking programme. Every night of the 17-date run at the Théâtre du Châtelet features a different triple bill, covering in total 18 pieces by twelve choreographers – and that’s not counting the opening gala.

La Bayadère is one of the ballets I recommend to people who have never seen ballet before. It has high drama, exquisite tragedy, fabulous costumes, one of the best "white" acts going, and it almost passes the Bechdel test. Sitting in a mostly empty Vue cinema in Harrow watching last night’s live broadcast from the Mariinsky Theatre in St Petersburg, I had a chance to try my own prescription.