Ex Wants to Get Back Together

I was with a guy for almost a year and a half and even though it wasn’t a God-centered relationship it still was really amazing and we never had many tough times. He ended up telling me he wanted to take a break in January of this year because I was mentally in a bad spot and he didn’t know how to help anymore. He lied about the break and ghosted me because he was too scared to break up with me. We go to the same college now and he reached out to me apologizing and we spoke in person for the first time since the beginning of January for about 5 hours yesterday. He apologized very maturely for how he treated me and the breakup and told me he didn’t like the people he was surrounding himself with and who he was becoming here at college and he broke down and that’s when he reached out to me. We had a great time catching up and he wants to get back together with me and I told him I want it to be God-centered this time and he agreed. I need him to be secure with himself and his morals and getting back into his faith before I consider getting back together with him. He told me he did some bad and unfaithful things over the summer that he regrets and he doesn’t want to be that person anymore and wants to treat me the way I deserve to be treated. He’s not a bad person but he just lost himself and made some poor decisions during and since the breakup. I’m not sure how long it will take me to forgive him IF I’m able to, and if we get back together I want it to be meaningful and purposeful through and for God this time. He seems like he’s changed in a good way but I think he needs a little more time to be secure in himself before we start anything again. I just have a lot of thinking to do and would appreciate some encouragement.