In my honest opinion, this exchange was really unnecessary. If she genuinely didn't play you and the child is really yours, she will obviously take offense if you ask for a DNA test because you obviously didn't take the relationship serious since you think she was dishing out the cookie jar to other men, to make it worse, without protection. Kama yeye ni mhonest, hio thought ndio inauma yeye.
DNA tests are easy to do. All you could have done is have time with the baby, take thoseearbudsand do two swabs on the inside part of the cheeks, put the swaps in a polythene bag and take them to lancet labs at 5thngong avenue. Once you get there, they will equally take your DNA sample by swabbing the inside of your cheeks. After 5 days you will go back for your paternity test results.You could have easily done all these without her knowing.
Unfortunately, hapa ushaharibu relationship, incase she was faithful to you, even if you apologize for not trusting her after discovering the child is yours 100% your relationship with her will never be the same.
On the positive side, in case she was trying kukuwekelea ball, umehepa trap.