He is a cheater and a liar. Him being gay or bisexual or heterosexual is irrelevant. Cheater is a cheater.

I hope you don’t have unprotected sex. I know someone who contracted HIV from her husband who slept around. It is a big price to pay for a little bit of a fun.

I don’t know in which way he is a decent person but he surely is an awful partner.

He cooks? Asks about your day? Who cares? It’s not even anything important. I ask my neighbor about her day and a local restaurant has a good chef. Those aren’t relationship standards