Can you be bisexual but not really like people at the same time?

Like I'm bisexual no doubt I've known for 4 almost 5 years now but like at the same time it's almost impossible for me to have a crush on someone? like yeah sure I can see if someone is pretty or hot but nothing besides that I'm like "yeah I guess there pretty but I don't really care" Like I know I'm not Demisexuality because I have experience sexual attraction to someone I didn't even know because they were hot ( btw this is very rare like this only happened once)