🤷🏻‍♀️He wants to take it slow , is this a good thing?

We were flirting like a year.He had a gf but they splited up like 4-5 moths ago and I always had feeling for him like really serious.One day he texted me and we started to talk and we are talking since.We know that we like each other and compliment each other all the time we even decided on what we ll do as couples.. Yesterday my physics teacher who I really care and respect (its mutual) understood that we have something between ( he is older and experienced better than me)so my teacher talked to him like , I love you both separate but I dont know how will it be when you are together and shes(me) smart so dont let her down... (I guess he meant cheating that I would realize)and he asked that night what the teacher told me and I asked what was it about and he told the conversation and I asked him what he thought about us ,he answered that if we wanted to be ‘us’ it could be but he said that we dont need to hurry nevertheless we had a lot of time. So I said right even though I know that I want more.I asked some of my friends about this and they all agreed that its a good thing that he wants to know me and his feelings are real and this shows that he wants a real relationship.

Well I am confused about how I need to treat him.. :/ I dont know if this is a good thing .. is it?