Hi ladies, I would love to hear your input and thoughts on how to vet and what to look out for.
I started dating a guy in July and we decided to be boyfriend/girlfriend in November. I don't want to waste my time (been there, done that.)

I'm not sure if this guy is ready for serious commitment and marriage and I don't know how to find out his true intentions. He knows I'm more traditional and that my goal is to get married, he says he wants something serious/marriage and children before 35 but he's very vague other than that. We've been taking it slow and he's told me he has feelings for me, likes me etc. But he hasn't told me that he loves me and hasn't introduced me to his family either (he's never introduced anyone to his family and said it's a big step for him, could be a red flag..?) We haven't discussed a future together either. We've lightly touched on the subject of engagement/marriage in general but it was very very vague. He seems a bit unsure about all of that and I'm not interested in staying with someone that might get cold feet or doesn't truly want me. At the same time the relationship is still fairly new so I'm not sure how to think I obviously need more time to vet him to know if he's right for me as well. He's 27 and we go to the same uni, he's a third year and I'm on my fourth year.

What should I expect? What do I look out for? How do I vet in the best way? When is it time to leave? I don't want to waste a lot of time on someone not ready and I don't want to marry the wrong person.