BACKGROUND: I am currently back in my Home City for a couple of weeks. I have been spending a lot of time with my two best Home City friends, "Mike" and "Lisa". I have known Mike for nearly 5 years, and Lisa for about 2.5. Lisa is a good friend, but I am closer to Mike than I am to her, by virtue of the fact I have known him longer and have more in common with him.
Lisa has a long-term, blatantly-obvious crush on Mike (eg she has taken up all his hobbies, she always sits next to him whenever we go out, even does some of his chores when she is over at his house etc etc). Mike has informed me he sees her as a friend, but nonetheless, she and Mike spend a lot of time together when I am in my City I Normally Live In (which is about 48 weeks of the year). I have no "designs" on Mike and just see him as a friend.
THE ISSUE: I want to spend some time with Mike 1-on-1. As mentioned above, I am closer to him than Lisa, and I miss the times we used to hang out, just the two of us. But I want to do so in a way that doesn't upset Lisa. So far this hasn't been easy, as Mike and Lisa (mainly Lisa) have planned heaps of stuff for the three of us to do during my visit, so there hasn't really been any time to get Mike on his own, or arrange anything.
My plan is to maybe call Mike at home and ask him to do something 1-on-1 next week. My concern is that Lisa will invariably ask "so guys, what are we doing on (X) day?" and we'll have to tell her that we're doing something, just the two of us.
So is there any polite way I can handle this? Is there any polite way I can tell Lisa that just once, I'd like to spend some time alone with Mike without her around? And if Lisa hints that she'd love to come along, is there anyway I can defuse it?
Sorry if this all sounds so juvenile; we are in our 20s!