Things I know in Amsterdam that are good for eating/drinking are as follows; Brouwerij 't IJ (craft beer brewery), Blauw (indonesian restaurant), Foodhallen (basically a slightly upscale food court). These are all within a reasonable budget. If you have come here before July's over you have to get a herring from any local stand, 'cause they're delicious; but make sure to look for a stand that cleans them as they're served, not ones that have them laid out on ice. Unfortunately I don't know which stands are reputable off the top of my head. After July you can still get one, they just won't be as nice.
Things to see: there's a ton of museums in Amsterdam. The Van Gogh museum, Hermitage and Rijksmuseum are great if you like (historical) art, and the Stedelijk Museum for modern art. If you enjoy history in general, there's the Verzetsmuseum and the Joods Historisch museum, dealing with the resistance during WW2 and jews in the netherlands respectively. I would recommend climbing the Westerkerk if your missus weren't pregnant, 'cause the view is very nice. Also, if you have a day to just chill out, I highly recommend taking a stroll through a street market. Besides food (like fresh stroopwafels!), there's plenty of knick-knacks to be found if you like a souvenir, and it's just very nice in general to just stroll through the crowd and see what there is to be seen. I think the Dappermarkt is the closest one to the University from a quick google, but it's also one of the busiest, so you may be turned off by that.
A stroll through the Vondelpark might also be to your liking if the weather's nice, or you can buy some food and drinks at a local store and have yourself a nice picnic. The university also has a botanical garden (Hortus Bortanicus) which you might like if you enjoy nature stuff.
if we ever meet up 
