Struggling with my interfaith marriage

When my husband and I got married we decided our differences in religion wouldn't be a problem. We agreed to go to each other's churches and if we had children, to bring them to both churches too. At first, we became busy with work and lazy and let church take a backseat. It wasn't until after our child was born that we really felt the need to get back into it. So we attended mass and my Catholic Church on Sunday mornings and a service at his apostolic Pentecostal church in the evening. Our child was baptized catholic and things were going well. Until recently. A few weeks ago, we were at my husband's service and it just became too much for me to handle. For the first time, I saw my husband speak in tongues. I know that he has spoken in tongues before but never actually seen it. It terrified me. This isn't something that is done in my church. I've seen others do it at his church but to actually see my husband, the father of my child do it was unreal. His body was shaking, his voice didn't sound like his. I felt sick to my stomach and ran to the bathroom, pretending the baby needed changed. The service continued by forcing everyone to get up and dance around. They said if you weren't dancing you didn't have Jesus in you & they would make you dance. Every week the pastor suddenly claims Jesus is speaking to him, telling everyone they need to donate X amount of money right now in order to be saved. I try todo hard not to roll my eyes. My husband believes him. Last night was the final straw. They made everyone march around and speak in tongues in order to prove they know Jesus. I begged my husband to give me the baby because he was holding him and I wanted to go outside while this was happening but he took him with him to march around and began speaking in tongues. My baby was crying and my heart was breaking. The room was so loud and these people were acting so crazy, I just wanted to take him and run away. I went to the car and sobbed until my husband came out. We had a huge fight about it and I am just at a loss for what to do. I feel so bad because he let our child get baptized in my church and comes each week to my service but I just never want to go back to his. I do not want my children being in that environment. I get sick to my stomach everytime I think about it. I really don't mean to offend anyone from this religion or anyone who worships this way. Maybe I just don't understand it but I have no desire to understand. I don't even feel like I know my husband anymore after seeing him do these things and it's heartbreaking because we had such a strong, wonderful marriage until now. I found myself wishing I could take my child and leave him but he's a wonderful father and I could never do that to him. I've tried to tell myself it's just ONE day a week and just suck it up but it's really too much for me, not to mention I don't want my child there. What do I do??