Advice

How do you regain trust after your husband spoke explicitly to his ex and lied about it even when you knew the truth and then planned to meet her when you separated? Mine decided he wants to work things out with me and has her blocked (yes I check because he's unblocked her before behind my back but tells me he had no contact with her). He's taking my 7 month old son with him for the first time by himself, he's kept the baby while I've been at work but never taken him anywhere alone. He says he's going to get an application from his friend and hang out for a while but the thought keeps creeping in my head that maybe they're planning to meet. It's around the time they had planned to meet when we separated a few months back and I'm so insecure about the whole situation. We are living together and trying to work things out but it never leaves my mind completely.