I think my best friend from 1st grade is gay

We met in 1st grade and became best friends immediately. We hung out religiously up until we were 18. I left the state for 8 years, and when I came back we hung out again. During our high school years we always smoked weed and drank together. I never felt any gay vibes at that point.

I come back to my home state and we hang out again as if I never left, it was just a bunch of catching up. He has 3 kids, and he is married to my ex. I broke up with her and she got with him senior year.

Fast forward to the present and I'm getting gay vibes from him. I know the marriage is not the one he wants to be in but he has 3 kids with her and he is very loyal. He will stick it out even if it is the death of him. Last weekend he texts me asking if I ever get gay thoughts when I drink. I said no, and I took it as he was asking me if I was gay because he wants me.

He backpedaled a bit, and I made the situation at ease. I am not one to dislike gay people. So I was thinking maybe he didn't really mean he wanted to be with me. However, I know we have a close bond, brother like, so why wouldn't it be me? Whatever, I brushed it off. Today he sends me a picture of his dick with a tape measure saying "Started the workout again, happy with the results". He is referring to jelking. I should also note the tape measure was showing 3'9". So it could be an image from the internet, but may be he was just trying to be funny.

Is it really his dick? I don't know, I saw it once before, another gay situation. It kinda looks like his dick from what I remember. If it is his dick, who sends dick pics to another guy? I sent a picture of a 24 oz can of beer saying I don't want to hurt your feelings so I just took a picture of the beer can. Ya know, joking around ha ha.

Thoughts?

I know I know him, he has never made a physical move towards me. It is just weird that all of a sudden this gay talk happens. I love the guy, not in a homosexual kind of way, I fully understand his brain. I've known him since 1st grade, I get him. I feel like we have a connection but he is thinking that it is a love thing, but I'm like no, we just have a connection and that is it.