Dating older men

I'm 22 and I am married but currently separated so I've been talking to this older guy since December and he's 32 with 3 kids and he's a good father. I've been getting alot of unnecessary input from family about his age and so has he but the thing is he's more mature then my ex and he's the total opposite, he really likes me but Idk if I should take him seriously because of the age difference it's like I'm expecting him to change because of how my ex was. I was in a really bad marriage and Idk if he's really sincere about things but I do like him tho I just try not to show too much emotion towards him and it has only been a couple months well almost 3 but still. He's a perfect gentleman honestly, it's like he genuinely cares about me and I've had alot of issues with my ex recently and he's always been there for me. I just need some female advice really.