One, continue as you are, and likely eventually succumb to cheating. It'll be fun but you may suffer from guilt, and the situation will undoubtedly implode at some point.

Two, give up the flirting, be faithful purely to your wife.

Three, divorce your wife, because it's possible no matter how perfect you think the two of you are, marriage and monogamy simply aren't for you.

Four, talk this over with your wife, and enter an open relationship, pursue swinging, or something else along such lines. Or if she's completely opposed to it, you have the first three options--only with option one now being exponentially more difficult to carry out.

All of these have their upsides and their downsides, because you're in a shitty situation and therefore have shitty possibilities. My advice, if she's actually "the love of your life" then drop the flirting and keep it within socially acceptable bounds. If, however, on serious reflection you aren't certain that you are as deeply in love with your wife as you first thought, you will likely be better off independent of her. Nothing wrong with being single. It all just depends on what things matter to you most, and where you want to be in 5 or 10 years.