I hate this.

Ok so I'm married and having a baby, I love my husband and he is absolutely amazing towards me. The thing is he was in a 5 year relationship that was off and on before me, he has a 2 year old with that relationship. He would cheat on his ex and she would cheat on him. He even ended up getting another girl pregnant and getting her name tattooed on his chest. I guess the girl lied about being pregnant and he ended up covering the tattoo that same week, he ended it with the girl to get back with his ex. Me and his family are the only ones that know about his cover up tattoo not even the ex knows. Well anyways we started talking the middle of Feb. Of last year and made it official the beginning of March. Well that January he was trying to work it out with her and I guess it didn't work out but I seen text around January that said he still loves her and he'll always love her and that she'll always be his world and to top it off they were actually engaged also. He was so in love with that girl and did everything she wanted he would get on his knees for her well that's what everyone tells me' they would say he always talked about loving her and that she was the one and all that. Even mutual friends will tell me that but then he would end up talking up some other girls at a bar or the hooka lounge. Well anyways we moved really fast he told me he loved within weeks and we moved in together within a one month period we ended up getting married with only being together 6 months and now I'm pregnant with his second child. Idk but sometimes I feel like I was a rebound and that maybe he still loves his ex and since they didn't work out that he just settled for me. And I talked to him about this before he says I'm crazy and that he only got engaged to her so he can be around his son more because she wouldn't let him see his son at all. Until I encouraged him to take her to court and get 50/50. I'm I hate feeling like this and it's been a year already. I just don't like that she will always be there because they have a son together. Oh I don't want to leave this out but around Nov. We got in a really big fight he was lying straight to my face and then he ran over to his phone to try to have his ex lie for him she simply said what are you taking about. I seen that I ended up leaving that night so idk if they continued on texting or not. He lied about where he dropped his son off at which I already knew and I told him I knew but he continued to lie to my face. Ugh idk but all this is finally getting to me and I want to leave so I don't feel like this anymore. I don't want to feel like he'll run back to his ex or like I need to compete or compare myself to her. I need advice no bashing.