sexuality

so my boyfriend and i are currently on a break and it hasn’t even be two weeks. we took a break because i wanted to find myself and explore my sexuality and so we took a break but then he told me if i do anything with anyone we are over for good but i’m thinking if i never explore how will i ever know if i like girls? i’ve had a girlfriend when i was 15 and i’m now 19 but i never really got to explore much after that. it’s a lose lose situation because i will always question it if i don’t ever try. should we just break up? idk what to do. it’s such a hard situation.