Is there boundaries in dreams

[jankai]

it started were i was on a bus this being about midway though the dream and i had just gotten away from the 28 days later sinario and then i said to myself hang on would i be on the bus driving past stepping hill hospital with my ex on the bus. A few seconds later there it was i was lucid. I walked down to my ex and i thought to myself i might as well try it and i started speaking to her and then we got kissing and so on and then when i tried to you no go for it she pushed me away and said not even in your dreams which is what she said to me when i tried it in the relationship lol ( really hated her and she cheated on me) After all that i was in 28 weeks later i was trapped in a room and thought right i have had enough here so i charged my power which lets me in a dream to move to another dream so i did and when i was in this court room, with my ex and then i woke up, I talked about it with my friend and he said that since she wouldnt let me do it in real life my sub-contuse wouldnt let me in a dream. I have being lucid dreaming for a while and i have never had this problem before and luckly for me i have found this site. can anyone surgest anything (btw am a crap speller)