i agree with tikana about the 7th lord being weak
other arguments for why he is IS lying
1. jupiter conjunct the ascendant- meaning the truth (jupiter) is on YOUR side of the chart- at a reasonable closeness the ascendant
2. mercury retrograde so high in the chart close to the mc indicates some form of miscommunication- intentional (as is lying) or not
3. your significator mars- being squared by uranus (who is in the 7th house, using whole signs)
4. the moon, in pisces- the sign of everything which is NOT clear and VERY much the sign that can be most desceptive and indeed, foggy, and second of all conjunct bloody neptune- THE planet that is most desceptive and indeed, foggy
so the moon there is twice as confused and blurry, not seeing the situation clear
5. and as has been said before, his significator venus is fallen and in the 10th house of social standing- how others see you- your reputation
cheers!