hello and welcome.
well done for getting through the first year.
are there any counseling services you can access at Uni?
I have conflicting views here and only because of something my psychologist told me. My initial thought was to tell him that you are not looking for a relationship.
And that was when the voice of my psychologist (and psychiatrist) came up and said and suggested otherwise. Their logic is that by doing something where you can be around others can be helpful to reduce effects of depression even if temporarily.
with that said... I would still bail as I would not want to be around others when feeling low.
You said that you don't know him that well... going out with him will allow you get to know him a little better. And you might find that (a) he is a nice person you might want a relationship with or (b) you have different ideas and values and therefore no relationship. A person might go from group (a) to group (b) after 2 dates?
He seemed to want to get to know you more and sees something in you. On the other hand, you feel you are not ready.
If you decide to go out there is uncertainty with what will happen. If you don't go out, you know the outcome.
Is it the uncertainty that concerns you?
There are no right or wrong answers here.