Relationship advice please?

Me and my boyfriend have been together for almost 1 and half years now and it's long distance relationship. So the plan was for my boyfriend to come live with me and build a life together with him 2 years later. But his dad got sick recently and now he wants to stay with his dad. He said he doesn't want to break up with me because he loves me and doesn't want me with another man and asked if it's possible for me to return back after I graduate so we could get married and take care of his dad together. But, to be honest with you I can't make that sacrifice because my parents spent a lot of money to send me abroad and have a better life and I don't know what to do

Relationship advice please?
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