I mean, I can post some of my terrible attempts at straight romance comics but.... they're... not...good.......
Basically the main issue is that I would tend to make the male character extremely bland, because at the time, being a closet lesbian, the only way I could imagine finding a relationship with a man tolerable was if he was objectively nice to look at, like a nice but tasteful painting, was completely passive and unthreatening and expected nothing from me. When straight/bi/pan women write stories with attractive men in them, they draw and write the men sexy, like you can just tell when somebody is drawing or writing a character and thinking "phwoaaar yes this is sexy!" They have sexy bodies, sexy personalities and they get into sexy scenarios with the love interest. For me, just trying to imagine that was repulsive, so my romance scenes were very.... staged, very by-the-numbers and copied from what I'd seen in other media and thought not "mmm yess!" but "well, that seems... cute and tolerable I guess." The bodylanguage was always very cold, like they were always far away from each other, there was no touching or even leaning in, no flirty looks or anything. My straight romance stuff from before I came out was just bland and dull to read. I did it because I thought romance would go down well, and at the time I didn't see it as viable to do a gay romance.
Funnily though there's plenty of m/f flirting in my current comic, because after coming out and getting into relationships, I got a lot better at just understanding how to depict being attracted to people generally. Instead of thinking in terms of "what kind of man would I find tolerable?" I instead think more like "what kind of man are my friends who like men into?" and to then have characters react as I can imagine reacting to a gorgeous lady.
If you want to find for yourself what it's like... try writing and drawing a gay romance.