If I have cancer, what type of “biomarkers” and “genetic” or “genomic” tests will I need to have?

Well if you already had cancer you wouldn't use biomarkers because a scan to see if you have it, If you do a genetic test you can make sure that you didn't pass it down to any of your kids, and Genomic testing is different from genetic testing because it looks at all of a person’s genes, rather than focusing on a specific gene, or set of genes. Genomic testing looks broadly for gene alterations, or harmful changes, anywhere in the genetic code.

if your boyfriend is cheating on you, my best advice to you is to dump him, he's only going to drag you down. and if you do, don't fret there's plenty better that know how to treat a person right. i mean honestly, the whole point of a romantic relationship is love, and if you love someone you aren't going to cheat on them. i do believe in second chances, but why would he cheat in the first place? i personally feel that if someone cheats, they ruin any chance they wanted/had with you. i wish you the best of luck with this, hang in there.