Is the relationship over need an outsiders opinion

I 21 (M) im dating my first boyfriend 20(M) We have been together for 4 months now but for the past mouth i had to go back home for the holidays.We chatted daily and i have been back for now 2 weeks and we still havent seen each other (its currently exam season) he says he has a lot to do for uni so do i . But he has cancelled on me 3 times for one reason or another i get it its hard but in my opinion to not even have an hour to see your partner is weird right? He didnt even wanna grab a cofde for my birthday not even a call he just texted me happy bday in the morning. The question is , is he losing interest in the relationship and i know that i have to talk to him about it but i wanna do that irl not though text and unfortunately still haven't had the chance do talk to him, am i over exaggerating or should i not make a big deal of it?