I have two bonded rabbits as well and live in an apartment away from my parents home during college. During longer breaks, I go home and I take my rabbits with me, my older rabbit, Annabelle just recently opened up to me after being in a hoarding situation for most of her life. She had started to make progress with me and now enjoys my company after months of trying to get to know her. When I wanted to go home for the first time, I was nervous that our relationship would digress but with my experience--it does not at all.
I would suggest getting a large dog or cat crate that could fit both rabbits comfortably to travel. My rabbits also have a condo at my parents home, and usually the day I drive I put them in the condo and let them take the rest of the day off without any outside stresses. By the next day, they're both usually eager to play (or still tired from the drive).
As far as leaving your rabbit with your roommate, I have done the same as well when I went on vacation this summer. Just make sure you give a detailed list of what needs to be done, section off the food needed to be given and give emergency contact. When I returned, the rabbits were more happy that I was back with them than anything else.
I'm sure they will love you no matter what, whether you take them with you or not
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