I'm not sure I'm an STD expert - I'm not a doctor, but I've worked in the STD field for a long time.
I totally agree with Pax. There's no relation at all. Covid19 isn't sexually transmitted, if that's what you're asking. It's spread the same way a cold or the flu is spread. Washing your hands is the best way to prevent it (and the flu).
If you have specific questions, feel free to ask.
I'm not sure there are any actual experts on this forum, just folks with an interest in certain subjects, but that aside, you might want to be more specific about your question. The two diseases are not related. The novel corona virus is part of a family of viruses that have been around forever, and includes the common cold. Every so often one breaks out that is novel, meaning we haven't seen that exact virus before, but we have seen this class of viruses as long as humans have been thinking about this stuff. It's just like living with the flu, which we have done forever as well, but which also mutates and therefore there are many different strains of it. Viruses, whether they're living things or not, do like to exist, and adapt to do that. HIV is a different thing entirely, so again, not sure what you mean by how do they relate.