Reconnecting takes a long time. It takes as much time for them to come out the other side as it took for them leading up to the crisis.
Only text him if you have something important for him to weigh in on. He may need some space after spending the weekend away celebrating his birthday. This is so very normal because they think that their emotions warmed up too much too soon and then they have to back off a bit and "not give you the impression that they are warming back up to you".
Keep up the good work!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.