Trick

When you tell your bf....

I am going to see a doc = I want to have sex

When he asked...

You want me to accompany you? = You want to have sex with me?

When you says...

No need != Ohh...I can have it with another guy

And you says...

I can go on my own = I can DIY


So you no longer need him since he asked you, do you need him to have sex. GOsh~ come on, you don't need to INFORM your bf you are going doc IF you are not hoping him to be there. Is it really so tricky?