new gf

#1
I have been seeing a girl, i'm 26 and she 33, for over 3 months now but have only fucked once and she has not sucked me or anything else. she has let me get her off. could she be fucking someone else maybe or am I jumping to conclusions?
 
#3
she is playing all innocent but is happy for me to get her off but won't let me have fun. I doubt she will let me do if anything she just continue fucking and play innocent