Advice on what I should do?

Hey everyone,

I don’t know where to start. I’ve been seeing this guy since 2016. Ive met him when I was 19 and he was 26. Since 2016 we’ve been having sex, going on dates, he slept over at times, we would go on road trips etc. I am now 23 and he is 30 and lets just say everything is the same during the years. Sometimes he’d give me mixed signals like he likes likes me. Other days he tells me “why you acting like you are? we are not in a relationship” then a few days later again with the mix signals. I would say this happened about 3/4 times since 2016. I’m just super confused because I feel like I am at that age where I want to have a boyfriend and want to get serious with someone. All hands down we have a strong friendship and an amazing sex life and we could be up talking for hours. I guess what my question to you all is.. Do I ask him whats the deal between us? is it going to get serious or should I stop wasting my time and find someone else? Cause to me, its very confusing! And also, do I ask him in person or over text? Xxxx