If your boyfriend works at the computer and maybe even pass the free time for Valentine's Day you could give him something that, while PC is on, it reminds him of having a girlfriend and what should be its priorities.
Your photo could be enough for a background, but especially at work does not mean that it can choose at will, and especially if you do so on their own initiative may have some problems to infiltrate the office to set it.
Giving him this heart-shaped mouse however will think of you every click. Every time I take the mouse feels in your hands your love, and even in the most intense days of work can not help but think about it.
Moreover, every time you move, it will blink red like a beating heart, thus inevitably attract his attention.
In any case, the Red Heart Mouse is a gadget fun and unusual, an alternative gift for Valentine's Day that would be fine to do to a girl, but also a beautiful product that "romantics" will use all year round.
You can find it on iwantoneofthose.com