I'm surprised that nobody else had requested this (unless i've missed it!) Google+ is hot on the heels of Facebook and it is pretty standard to have a +1 button located within a website. I would think this is pretty much an essential request. It's even been proven to effect SEO and keyword ranking (indirectly)
This would be a great (and importat) feature. I would probabaly even get rid of the myspace button because for 1 myspace is effectively a music network these days and doesn't really have huge relevance to a dating site (although you could argue that it would be relevant for a social networking site). Nevertheless, myspace is not a major power anymore.