Keep up or take down?

I got this framed poster from my last boyfriend Nathan back in 1996. We broke up amicably in 1998. Ever since, I've kept the poster up in my apartment. Now that I have moved and have a new apartment, I stopped to ask myself if I should keep it up or take it down?

It's a very nice print by artist Steve Walker. But am I keeping it up to remind me of Nathan - and if so - is that ok? or is it time to move on?

I need some help with this decision. Please comment! Thanks! - that is, if anyone actually reads this.