Even though I was overseas studying for a year, we managed to keep in touch all that time!
I was away studying in Canada for a year, but in the end we stayed in contact with each other during that time.
ーEven though I was overseas studying for a year, we managed to keep in touch all that time!
「１年間留学していたけど、ずっと連絡取ってたじゃん！」
manage to keep in touch で「なんとか連絡を取り合う・どうにかして連絡を取り合う」
ーI was away studying in Canada for a year, but in the end we stayed in contact with each other during that time.
「カナダで１年間勉強していたけど、その間もなんだかんだでお互いに連絡取り合えてたじゃん。」
in the end で「なんだかんだで・結局は」
stay in contact with ... で「…と連絡を保つ・取り合う」
ご参考まで！
カナダ 
