I think you need to make a decision:
Do you want to be a good, lean (cross country) runner, a bigger weight lifter, or mediocre at both?
Once you've made this decision, you have a goal to strive for, and you must adjust your diet and weight routine accordingly.
If you want to be a good runner, simply put, you must be lean. It's possible to gain weight and build muscle while running, but it's extremely difficult, and it works counter to being a good runner. I have done this myself in the past, and I was able to build muscle and run well, but as soon as I started to focus in on running, lift weights less, eat less, and lose weight, I was able to run a lot faster. I took 25 minutes off my marathon time after losing 20 pounds (I'm 5'9", I went from 165 to 145). It's long been established that runners must be lean to run well. Supposedly you'll run a second a mile faster for each pound of weight you lose, so long as you stay in the healthy range. That doesn't mean you have to give up lifting weights, as they can help you maintain muscle while losing fat. However, if this is the path you chose, you really shouldn't be trying to bulk up, it'll only make you slower.
If you do want to bulk up and be a better weight lifter, bear in mind that running a lot will impede your progress. If you're trying to bulk, ideally you should do cardio 30 mins 3 times a week, just to maintain good health. It's also long been established that cardio beyond that can be detrimental to developing larger muscles. I've gone through periods where I've eased off on my running, and noticed huge gains in the weight I could lift, and the size of my muscles, particularly upper body. I couldn't do it when I was running more.
If you're going to go with the "both" route, note that you won't reach your body's fullest potential in running or lifting. Maybe this is ok with you, as you'll have decent size, but a pretty good lifter, and a pretty good runner, but don't expect any personal records unless it's for something you're new at.
So I think you have a personal decision to make here. Your two interests are diametrically opposed, to succeed in one, you will have to make sacrifices in the other.
