Move on and find someone else.
This will allow you to find someone who wants a serious relationship as well.
Should I ask him out at the end of the school year?
Already answered Not a question Bad question Other.
And we both agreed on this.
Less the an hour?
You might broach the question during a walk on the beach, at the park, or in one of your homes.
Do I trust him?
Trust in this one.
Sometimes its quailty not quanity.
Trust your instinct.