59/m 32/f 3 months dating

Recently started seeing 59/m I am 32/f. Everything has been great. It has just been a very slow build over the last 3 months and he recently told me the reason things have been slow is because he needs to take pills to get it up. While I know this is a common issue and most men don't want to talk about it, how do I make him feel more comfortable to eventually get there when we are both ready? I reassured him that it is not an issue for me and I am in it with him. Sometimes it's hard to not feel like he's just not that interested.