Was my bf being bicurious?

So basically we were having sex and I was sucking his dick and then he started to suck his own dick which I have never seen him do. Then I was like why are you doing that and then he said to me oh it’s because I feel like it’s a major turn on for me. And he continues to suck his dick while I also suck his dick at the same time. So basically, we head to the bed and we had sex. We were having sex and then he grabbed my dildo for me to suck while he was fucking me now all of a sudden he started sucking the dildo too, and I was pretty fucking surprised. I asked him why are you doing that because I thought it was weird because this is the first time I’ve ever seen him do this. He said to me oh, idk it’s like a major turn on for me. I know this may seem very wild, but I think he might be a little bi curious. But after we had sex, he was like oh I regret everything and I feel weird. What do y’all think was that situation? I also think he might be a little gay. This might sound fake but it’s very real and I want to know your opinion. I honestly thought it was very weird for him to do that because I’ve never ever thought that he would do something like that.