I love all of you but...
You mean that there really is a but..?
Yes, you never give me company the way I want it.
I'm sorry I'm not fulfilling your needs as much as you wanted. It's good that you came to tell me and I care about how you feel. If you didn't tell me then I don't know if I'd keep disappointing you.
I'm still going to cheat on you.
I think that that sounds a little bit selfish. You should care about the wellbeing of others. That means that you should not cheat.