Was Harry gay/bi?

I got the feeling he was. He said Donna was the only woman he ever loved meaning she could've been a one-time with a woman thing. He's the only one not to go after another of the women. He wasn't married ever and only had his dogs. There's one scene during the voulez vous song where he's arm locked with another guy and at one point in the film after he takes the spotlight it shows that same guy smiling at him. Then he dances for a moment with that same guy during the wedding reception. Also, the scene where he talks with Bill and they're both about to confess being the father it really seemed as if Bill was implying that he thought Bill's secret was his sexuality and he was gonna come out. So, can anyone clarify? I watched this on tv so I don't know if they cut out any other scenes that might've pointed this out.